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Wimaluk Nopsiri. 2002. Alkaloids from the leaves of Alstonia macrophylla. Field of Study Pharmacognosy, Chulalongkorn University;
Wimaluk Nopsiri. (2002) Alkaloids from the leaves of Alstonia macrophylla . Chulalongkorn University/Bangkok.
Wimaluk Nopsiri. Alkaloids from the leaves of Alstonia macrophylla. . Bangkok:Chulalongkorn University, 2002.
Wimaluk Nopsiri. (2002) Alkaloids from the leaves of Alstonia macrophylla . Chulalongkorn University/Bangkok.