Faarungsang, S. ., and S. Nakthong. “Efficiency Using Computer Simulation of Reverse Threshold Model Theory on Assessing a ‘One Laptop Per Child’ Computer Versus Desktop Computer”. Agriculture and Natural Resources, vol. 51, no. 2, Apr. 2017, pp. 131-6, https://li01.tci-thaijo.org/index.php/anres/article/view/240172.