Kyi Win, N., and P. Chumjai. “Farmers’ Adoption of Improved Technological Knowledge on Soybean Production in Northern Shan State Area, Myanmar”. Kasetsart Journal of Social Sciences, vol. 30, no. 2, Aug. 2009, pp. 227-38, https://so04.tci-thaijo.org/index.php/kjss/article/view/246510.