Chongdee Nilanonta. 1993. Investigation of antimalarial principles from seeds of Amomum krervanh (Zingiberaceae). Faculty of Graduate Studies, Mahidol University;
Chongdee Nilanonta. (1993) Investigation of antimalarial principles from seeds of Amomum krervanh (Zingiberaceae) . Mahidol University/Bangkok.
Chongdee Nilanonta. Investigation of antimalarial principles from seeds of Amomum krervanh (Zingiberaceae). . Bangkok:Mahidol University, 1993.
Chongdee Nilanonta. (1993) Investigation of antimalarial principles from seeds of Amomum krervanh (Zingiberaceae) . Mahidol University/Bangkok.