Tawatchai Tanchaisawat, Dennes T. Bergado, and Jaturonk Saowapakpiboon. 2008. “Enhancement of PVD Performance by Thermal and Electro-Osmotic Techniques”. Agriculture and Natural Resources 42 (5). Bangkok, Thailand:398-404. https://li01.tci-thaijo.org/index.php/anres/article/view/244629.