Doungsawads, Thossaporn. “The Study of Learning Outcomes of IC Circuit and Application of Display Circuit of Vocation Certificate Students Taught by Project Based Leaning”. Vocational Education Central Region Journal 1, no. 1 (June 30, 2017): 69–75. Accessed May 7, 2024. https://so06.tci-thaijo.org/index.php/IVECJournal/article/view/246451.