Pattanapong Pattiyanuwat. 2000. Anti-gastric ulcer activity of hardwickic acid from Plau Yai (Croton oblongifolius Roxb.). Field of Study Pharmacology, Chiang Mai University;
Pattanapong Pattiyanuwat. (2000) Anti-gastric ulcer activity of hardwickic acid from Plau Yai (Croton oblongifolius Roxb.) . Chiang Mai University/Chiang Mai.
Pattanapong Pattiyanuwat. Anti-gastric ulcer activity of hardwickic acid from Plau Yai (Croton oblongifolius Roxb.). . Chiang Mai:Chiang Mai University, 2000.
Pattanapong Pattiyanuwat. (2000) Anti-gastric ulcer activity of hardwickic acid from Plau Yai (Croton oblongifolius Roxb.) . Chiang Mai University/Chiang Mai.