ทองไสลพ., สุนทรกนกพงศ์ว. and เพ็ชร์แสงศรีศ. (2017) “THE DEVELOPMENT OF AN E-LEARNING COURSEWARE ON DATA, VARIABLES AND CONSTANTS FOR GRADE 12 STUDENTS”, Journal of Industrial Education, 16(1), pp. 42-49. Available at: https://www.tci-thaijo.org/index.php/JIE/article/view/123852 (Accessed: 15October2019).