Bongbutr J, Wattanasarn H, Pansuppawat T. DEVELOPMENT OF PROBLEM-SOLVING ABILITIES AND LEARNING ACHIEVEMENT OF MATHAYOMSUKSA 5 STUDENTS ON THE TOPIC OF ELECTRICITY USING STEM EDUCATION LEARNING MANAGEMENT AND MIND MAPPING. SN Grad J. [internet]. 2026 Sep. 28 [cited 2026 Oct. 10];23(102):485-99. available from: https://so02.tci-thaijo.org/index.php/SNGSJ/article/view/278372