Apirak Puntumchai. 1997. Chemical constituents of the heartwoods of Mansonia gagei and their biological activity. Field of Study Chemistry, Chulalongkorn University;
Apirak Puntumchai. (1997) Chemical constituents of the heartwoods of Mansonia gagei and their biological activity . Chulalongkorn University/Bangkok.
Apirak Puntumchai. Chemical constituents of the heartwoods of Mansonia gagei and their biological activity. . Bangkok:Chulalongkorn University, 1997.
Apirak Puntumchai. (1997) Chemical constituents of the heartwoods of Mansonia gagei and their biological activity . Chulalongkorn University/Bangkok.