Petsri, W. “Developing the 4 S Instructional Model for the Dramatic Arts Strand 3 in the Learning Area of Art for Prathom Suksa 5 Students”. Ubon Ratchathani Journal of Research and Evaluation, Vol. 7, no. 1, June 2018, pp. 21-30, https://www.tci-thaijo.org/index.php/ubonreseva/article/view/138414.