Thanawan Rojpitikul และ Pattara Thiraphibundet. (2014) Cholinesterase inhibitors from leaves of Indian devil tree Alstonia scholaris L. R. Br. Chulalongkorn University:ม.ป.ท.Thanawan Rojpitikul และ Pattara Thiraphibundet. 2014. Cholinesterase inhibitors from leaves of Indian devil tree Alstonia scholaris L. R. Br. ม.ป.ท.:Chulalongkorn University;Thanawan Rojpitikul และ Pattara Thiraphibundet. Cholinesterase inhibitors from leaves of Indian devil tree Alstonia scholaris L. R. Br. ม.ป.ท.:Chulalongkorn University, 2014. Print.