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Pornpan Sukpanyalert. (2000) Bioactive compounds of Sphaeranthus africanus Linn. part 2 . Chulalongkorn University/Bangkok.
Pornpan Sukpanyalert. Bioactive compounds of Sphaeranthus africanus Linn. part 2. . Bangkok:Chulalongkorn University, 2000.
Pornpan Sukpanyalert. (2000) Bioactive compounds of Sphaeranthus africanus Linn. part 2 . Chulalongkorn University/Bangkok.