Faarungsang, Supat, and Sasithon Nakthong. 2017. “Efficiency using computer simulation of Reverse Threshold Model Theory on assessing a ‘One Laptop Per Child’ computer versus desktop computer”. Agriculture and Natural Resources 51 (2). Bangkok, Thailand:131-36. https://li01.tci-thaijo.org/index.php/anres/article/view/240172.