Meekong, K., Y. Chanroeng, and A. Tengtragul. “The Use of Local Literature and Questioning Techniques for Developing Critical Thinking Skills of Matthayomsuksa 2 Students at Phuangphayom School, Phayao Province”. Ganesha Journal, vol. 16, no. 1, June 2020, pp. 107-20, https://so01.tci-thaijo.org/index.php/pikanasan/article/view/232589.