สุธรรม ช., กันตาธนวัฒน์ ฐ., and ตั้งคุณานันต์ ป. “THE DEVELOPMENT OF THE LEARNING ACHIEVEMENT OF COMPUTER PROBLEM SOLVING OF COOPERATIVE LEARNING MODEL FOR MATTHAYOMSUKSA 4 OF SAMSENWITTAYALAI SCHOOL”. Journal of Industrial Education, vol. 15, no. 2, Aug. 2016, pp. 56-63, https://ph01.tci-thaijo.org/index.php/JIE/article/view/122334.