คำหาญ อ., วงษ์ชาลี พ. and ปานศุภวัชร ถ. (2019) “The Development of Analytical Thinking Skills and Learning Achievement on the Materials of Primary Student’s 4 Level Using Graphical Technique”., Journal of Roi Et Rajabhat University, 13(3), pp. 128–138. available at: https://so03.tci-thaijo.org/index.php/reru/article/view/188423 (accessed: 31 August 2026).