Prompinit, K., and W. Kasemsin. “The Study and Analysis of the Impact on the Power Distribution System of the Battery Charger Stations at Sakon Nakhon Rajabhat University”. Creative Science, vol. 11, no. 3, Aug. 2019, pp. 105-13, https://ph01.tci-thaijo.org/index.php/snru_journal/article/view/178927.