ศรีวิสทิยกุล ก., and ประเสริฐสรวย ส. “COLLABORATION-ORIENTED LEARNING OBJECTS BASED ON CONSTRUCTIVISM THEORY”. Sripatum Review of Humanities and Social Sciences, vol. 13, no. 2, Mar. 2018, pp. 28-37, https://so05.tci-thaijo.org/index.php/spurhs/article/view/116566.