Sombat Wanauppathamkul. 1993. Investigation of antimalarial principles from tubers of Cyperus rotundus Linn. (Cyperaceae). Faculty of Graduate Studies, Mahidol University;
Sombat Wanauppathamkul. (1993) Investigation of antimalarial principles from tubers of Cyperus rotundus Linn. (Cyperaceae) . Mahidol University/Bangkok.
Sombat Wanauppathamkul. Investigation of antimalarial principles from tubers of Cyperus rotundus Linn. (Cyperaceae). . Bangkok:Mahidol University, 1993.
Sombat Wanauppathamkul. (1993) Investigation of antimalarial principles from tubers of Cyperus rotundus Linn. (Cyperaceae) . Mahidol University/Bangkok.