Sira, Niwat, Chaiyan Sakulthai, and Natthapong Phunmanee. “A Development Adaptive Content Web – Base Instruction. On : Data Investigation on the Internet for High Vocational Certificate level”. SciTech Research Journal 1, no. 1 (June 11, 2018): 9–18. accessed December 11, 2025. https://ph02.tci-thaijo.org/index.php/jstrmu/article/view/245738.