Pattarapremcharoen, M., W. Rakwichian, N. Ketjoy, and P. Intanon. “Marketing Model for Solar Energy in Thailand”. Journal of Renewable Energy and Smart Grid Technology, vol. 2, no. 1, Dec. 2014, pp. 56-64, https://ph01.tci-thaijo.org/index.php/RAST/article/view/25998.