ชัยวณิชย์ ก., and เศษโพธิ์ ส. “An Evaluation Method of Greenhouse Gas Reduction by the Installation of a Photovoltaic Cells System: Case Study of Smart Grid Network in the University of Phayao”. RMUTSB ACADEMIC JOURNAL, vol. 6, no. 2, Dec. 2018, pp. 194-06, https://li01.tci-thaijo.org/index.php/rmutsb-sci/article/view/114345.