Pianpailoon, Pariwat, and Jaree Thongkam. “Factor Selection for Improving Vocational Certificate Course Selection Model Performance Using Wrapper Method”. Research on Modern science and Utilizing Technological Innovation Journal (RMUTI Journal) 14, no. 2 (May 19, 2021): 65–87. Accessed May 6, 2024. https://ph01.tci-thaijo.org/index.php/rmutijo/article/view/243252.