Ong, DM, Nguyen, HS, Nguyen, TLA, Vu Hai, D, Nguyen, TL and Hoang, TT (2023) Marine Scientific Research in the South China Sea. Project Report. Diplomatic Academy of Vietnam (DAV), Hanoi, Viet Nam..

Ong, DM (2023) The Interaction between an Agreement on Biodiversity Beyond National Jurisdiction and the Law of the Sea. In: Borg, S, Attard, F and Vella de Fremeaux, P, (eds.) Research Handbook on Ocean Governance Law. Research Handbooks in Environmental Law series . Edward Elgar, Cheltenham, pp. 220-265. ISBN 9781839107689

Ong, DM (2021) The South China Sea Environment: The Need for Formalised Institutional Interaction between Science, Policy and Law. In: Keyuan, Z, (ed.) Routledge Handbook of the South China Sea. Routledge, Abingdon, Oxon., pp. 294-319. ISBN 9780367415556

Ong, DM and Ong Khai Long, D (2021) Shared Responsibility or Institutional Accountability? Continuing Conceptual and Enforcement Issues for Grievance Mechanisms of Public and Private International Finance Institutions. In: Barnes, R and Long, R, (eds.) Frontiers in International Environmental Law: Oceans and Climate Challenges: Essays in Honour of David Freestone. Brill/Nijhoff, Leiden, The Netherlands, pp. 106-138. ISBN 978-90-04-37287-0

Ong, DM (2020) Transboundary Fisheries Management. The Korean Journal of International and Comparative Law, 8 (2). pp. 131-177.