Lawong, S., and T. . Sirimongkol. “Service Quality Perception Classified by Demographic Characteristics of the Provincial Electricity Authority in Kalasin Province”. Journal for Developing the Social and Community, vol. 10, no. 2, Aug. 2023, pp. 533-46, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/265827.