Namwong, P. (2022) “Developing Instructional Development of Learning Management in the Biology Course on Ecosystems and Population Based on the Constructivism Theory for the 12th grade Students”, Journal of Graduate School, Pitchayatat, Ubon Ratchathani Rajabhat University, 17(2), pp. 143–153. Available at: https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/256226 (Accessed: 28 March 2024).