kookkaew, pathompong, and M. . Sooksangsee. “Factors Influencing the Accept of Payment Using Electronic Financial System (PEA-EPay) Case Study: Provincial Electricity Authority of Suphanburi Province”. Business Review Journal, vol. 12, no. 2, Dec. 2020, pp. 50-67, https://so01.tci-thaijo.org/index.php/bahcuojs/article/view/231085.