Thaworn Jaipetch. (1999) Chemical constituents of Irvingia malayana and Clausena excavata. Mahidol University,:ม.ป.ท.Thaworn Jaipetch. 1999. Chemical constituents of Irvingia malayana and Clausena excavata. ม.ป.ท.:Mahidol University,;Thaworn Jaipetch. Chemical constituents of Irvingia malayana and Clausena excavata. ม.ป.ท.:Mahidol University, 1999. Print.