Sirikul Chunsawang. 1997. Alkaloid extraction from herbs by emulsion liquid membrane process. Graduate School, Chulalongkorn University;
Sirikul Chunsawang. (1997) Alkaloid extraction from herbs by emulsion liquid membrane process . Chulalongkorn University/Bangkok.
Sirikul Chunsawang. Alkaloid extraction from herbs by emulsion liquid membrane process. . Bangkok:Chulalongkorn University, 1997.
Sirikul Chunsawang. (1997) Alkaloid extraction from herbs by emulsion liquid membrane process . Chulalongkorn University/Bangkok.