Khampang, S., & Sutthirat, C. (2022). THE DEVELOPMENT OF LEARNING ACHIEVEMENT AND FUTURE PROBLEM SOLVING FOR MATHAYOMSUKSA 1 STUDENTS. Journal of Buddhist Education and Research (JBER), 8(2), 72–82. retrieved from https://so06.tci-thaijo.org/index.php/jber/article/view/260157