Ubonwan Pongprayoon. 1995. Topical antiinflamatory activity of the major lipophilic constituents of the rhizome of Zingiber cassumunar Roxb. : Part 1.The essential oil,"phlai oil". Bangkok:Thailand Institute of Scientific and Technological Research;
Ubonwan Pongprayoon. (1995) Topical antiinflamatory activity of the major lipophilic constituents of the rhizome of Zingiber cassumunar Roxb. : Part 1.The essential oil,"phlai oil" (รายงานผลงานวิจัย). Thailand Institute of Scientific and Technological Research:Bangkok.
Ubonwan Pongprayoon. Topical antiinflamatory activity of the major lipophilic constituents of the rhizome of Zingiber cassumunar Roxb. : Part 1.The essential oil,"phlai oil". Bangkok:Thailand Institute of Scientific and Technological Research, 1995.
Ubonwan Pongprayoon. (1995) Topical antiinflamatory activity of the major lipophilic constituents of the rhizome of Zingiber cassumunar Roxb. : Part 1.The essential oil,"phlai oil" (รายงานผลงานวิจัย). Thailand Institute of Scientific and Technological Research:Bangkok.