‘Effects of Joint Wills’ (1950) 25 Philippine Law Journal629
‘Pledges and Mortgages of Shares of Stock’ (1950) 25 Philippine Law Journal660
‘The Anglo-Iranian Oil Dispute’ (1951) 26 Philippine Law Journal55
‘Classification and Preference of Credits in Insolvency’ (1951) 26 Philippine Law Journal98
‘On Vicarious Liability of the Employer’ (1951) 26 Philippine Law Journal413
‘1951 Annual Survey of Philippine Law: Criminal Law: Criminal Liability and Specific Crimes’ (1952) 27 Philippine Law Journal283 (with A. M. Ceniza)
‘On the Shareholders’ Right of Preemption: Law and Practice' (1953) 28 Philippine Law Journal443
‘The Belligerent Occupant and the Returning Sovereign: Aspects of the Philippine Law of Belligerent Occupation’ (1953) 28 Philippine Law Journal645
Conflicting Orders and Appraisal of Resort to Coercion (Proceedings, American Society of International Law, 1959)
Studies in World Public Order (Yale University Press, 1961) (with Myres S. McDougal & Associates)
Law and Minimum World Public Order: The Legal Regulation of International Coercion (Yale University Press, 1961) (with Myres S. McDougal)
‘On Territorial Waters of Archipelagoes’ (1962) 1 Philippine International Law Journal157
‘The Functions of Judicial Review and the Doctrine of Political Questions’ (1964) 39 Philippine Law Journal444
‘The Asian Development Bank’ (1965) 4 Philippine International Law Journal
Comments on the Relevance of International Law to the Development Process (Proceedings, American Society of International Law 15, 1966)
‘Legal Problems of Private International Business Enterprises: An Introduction to the International Law of Private Business Associations and Economic Development’ (1966) 113 Hague Recueil213
‘Section 13(5) Problems: The Consequences of Obsolescence’ in 165 Aspects of Philippine Corporate Practice (U.P. Law Centre, 1967)
‘Some International Law Aspects of Economic Development’ (1975) IV Philippine Yearbook of International Law49
‘The Principle of Non-Refoulement: A Note on International Legal Protection of Refugees and Displaced Persons’ (1982) 57 Philippine Law Journal598
‘Coerced Movements of People Across State Boundaries: Some Problems of International Humanitarian Law’ (1983) 58 Philippine Law Journal 256; also published in (1983): Australian Yearbook of International Law113
‘Regional Conceptions of Public Order: Some Reflections on the Development of an International Law for a New World Order’ in The Spirit of Uppsala, Grahl-Madsen, and Toman, (eds.), (1984) (with E. D. Solidum)
‘Role of Investment Agencies in Developing Countries in the Management and Negotiation of Contracts’ in Horn, (ed.), Adaptation and Renegotiation of Contracts in International Trade and Finance (Studies in Transnational Economic Law, Vol. 3, 1985)
‘The Problem of Delay in the Philippine Court System’ (1987) 62 Philippine Law Journal201 (with E. L. Caparas)
‘Reflections on the Voluntary Rescheduling Approach to the International Debt Problems: Framework and General Principles’ (1987) II Foreign Relations Journal (October, no. 3)
‘Process and Culture in Development Negotiations: The Management of Consent’ 1990 V Foreign Relations Journal (October, no. 3)
Refugees in Southeast Asia: A Note on Philippine Practice and Recent Developments (with M. P. dela Cerna) (Proceedings of the 1990 Pacific Region and International Law (PRIL) Conference at the University of Melbourne); also published in (1990) VI World Bulletin: Bulletin of the Institute of International Legal Studies (November–December, no. 6)
Some Aspects of the Dispute Settlement Provisions of the 1982 United Nations Convention on the Law of the Sea (Selected Papers published by the Southeast Asian Programme in Ocean Law, Policy and Management (SEAPOL), delivered at SEAPOL Workshops in Phuket and Chiangmai, Thailand, 1989 and 1991), p. 41
‘Marine Pollution and Spoliation of Natural Resources as War Measures: A Note on Some International Law Problems in the Gulf War’ (1992) 14 Houston Journal of International Law483
‘The Application of Law: Some Recurring Aspects of the Process of Judicial Review and Decision Making’ (1992) 37 American Journal of Jurisprudence (December)
Sovereign External Debt: A Note on Contemporary Legal Aspects (published under the title ‘1992 – La Dette Exterieure/The Present State of Research Carried Out by the English-speaking Section of the Centre for Studies and Research’) (Hague Academy of International Law, April 1993)
‘Qualities of a Good Judge’ (1994) III (2) Lawyers Review (28 February 1994) 68
‘The Doctrine of Sovereign Immunity from Suit in a Globalizing and Developing Economy: Philippine Experience and Caselaw’ in Ando, N. (ed.), Japan and International Law: Past, Present and Future (International Symposium to mark the Centennial of the Japanese Association of International Law, 1999); also published in (1998) 3 Austrian Review of International and European Law
‘Dispute Settlement under the Aegis of the World Trade Organization (WTO)’ in Odyssey and Legacy: The Chief Justice Andres R. Narvasa – Centennial Lecture Series (Supreme Court of the Philippines and the College of Law, University of the Philippines, 1998), p. 179
‘Dispute Settlement in the World Trade Organization: Institutions, Process and Practice’ (with Peter Van den Bossche), in Schermers, H. and Blokker, N. (eds.), Proliferation of International Organizations: Legal Aspects (Kluwer, 2000); also published in (2000) 73 Philippine Law Journal
‘Reflections on Good Governance, Development and Judicial Reform: Some Perspectives on the Problem of Judicial Corruption’ in Schlemmer-Schulte, S. and Tung, K. Y. (eds.), International Financial and Development Law, Liber Amicorum Ibraham F. I. Shihata (Kluwer, 2001)
‘Some Perspectives on the Problem of Corruption: The Nexus Between Reform and Control of Corruption and National Development Processes’: Address delivered before the University of the Philippines Chapter, Phi Kappa Phi International Honor Society, 18 April 2001; published in Phi Kappa Phi UP Newsletter, January–March 2002
‘Some Structural Features of the Dispute Settlement System of the World Trade Organization’: Address delivered at the Conference of the WTO Research Institute of Shanghai, Peoples Republic of China, 18 May 2001; text in The WTO and China: The Road to Free Trade, published by the Hong Kong WTO Research Institute, p. 21 (2003)