Hunsa Prawat. (1989) The chemical investigation of Manihot esculents Crantz. Mahidol University,:ม.ป.ท.Hunsa Prawat. 1989. The chemical investigation of Manihot esculents Crantz. ม.ป.ท.:Mahidol University,;Hunsa Prawat. The chemical investigation of Manihot esculents Crantz. ม.ป.ท.:Mahidol University, 1989. Print.