Chongdee Nilanonta. (1993) Investigation of antimalarial principles from seeds of Amomum krervanh (Zingiberaceae). Mahidol University,:ม.ป.ท.Chongdee Nilanonta. 1993. Investigation of antimalarial principles from seeds of Amomum krervanh (Zingiberaceae). ม.ป.ท.:Mahidol University,;Chongdee Nilanonta. Investigation of antimalarial principles from seeds of Amomum krervanh (Zingiberaceae). ม.ป.ท.:Mahidol University, 1993. Print.