Arfah Mohd. Nasir. (1991). Alkaloids of some selected species of Kopsia (Apocynaceae).
Chicago Style (17th ed.) CitationArfah Mohd. Nasir. Alkaloids of Some Selected Species of Kopsia (Apocynaceae). 1991.
MLA (8th ed.) CitationArfah Mohd. Nasir. Alkaloids of Some Selected Species of Kopsia (Apocynaceae). 1991.
Warning: These citations may not always be 100% accurate.