Jitpraphat T.Charoen. 2010. Application of biological and chemical methods in identification of Kratom leaves. Faculty of Science, Mahidol University;
Jitpraphat T.Charoen. (2010) Application of biological and chemical methods in identification of Kratom leaves . Mahidol University/Bangkok.
Jitpraphat T.Charoen. Application of biological and chemical methods in identification of Kratom leaves. . Bangkok:Mahidol University, 2010.
Jitpraphat T.Charoen. (2010) Application of biological and chemical methods in identification of Kratom leaves . Mahidol University/Bangkok.