Osman, C.P. and Ismail, N.H. and Ahmad, R. and Ahmat, N. and Awang, K. and Jaafar, F.M. (2010) Anthraquinones with antiplasmodial activity from the roots of rennellia elliptica korth. (Rubiaceae). Molecules, 15 (10). pp. 7218-7226.