As per Article 38 of the Statute of the International Court of Justice, which one of the following has…

Article 38(1) of the Statute of the International Court of Justice enumerates four categories: (a) international conventions, (b) international custom as evidence of a general practice accepted as law, (c) the general principles of law recognized by civilized nations, and (d) judicial decisions and the teachings of the most highly qualified publicists of the various nations as subsidiary means for the determination of rules of law. "Decisions or determinations of the organs of International Institutions" is not mentioned in Article 38(1).