มณีฉาย ขจรวุฒิ, โสวจัสสตากุล ทนงศักดิ์, and พิมดี ไพฑูรย์. 2016. “A DEVELOPMENT OF WEB BASED INSTRUCTION FOR SELF-DIRECTED LEARNING ON ELECTRONIC CIRCUIT AND DEVICE OF THIRD YEAR VOCATIONAL CERTIFICATE STUDENTS”. Journal of Industrial Education 15 (2):41-47. https://ph01.tci-thaijo.org/index.php/JIE/article/view/122326.