ไพโรจน์ นิติศักดิ์. “Development of Learning Resource Bank for Graduate Diploma in Teaching Profession”. Journal of Humanities and Social Sciences, Rajapruk University 5, no. supplement (December 31, 2019): 225–237. Accessed April 19, 2024. https://so03.tci-thaijo.org/index.php/rpu/article/view/231986.