สิงห์จุ้ย อ., & พุทธา ส. (2018). The Relationship between Internal Supervision Process and Lesson Plan Management Skills of Suphanburi Technical College. Journal of Humanities and Social Sciences, Rajapruk University, 3(3), 130–142. Retrieved from https://so03.tci-thaijo.org/index.php/rpu/article/view/112633