Phantip Vattanaviboon, Kulnaree Sirisali, Sudarat Manochiopinij, Wijit Wonglumsom, Pairoj Leelahakul, and Sophon Sirisali. “Continuous Personal Competency Improvement by Remote Education”. Agriculture and Natural Resources 40, no. 5 (October 30, 2006): 9–12. accessed August 28, 2026. https://li01.tci-thaijo.org/index.php/anres/article/view/243869.