ช่วยธานีนิภาพร, แสงประดิษฐ์ธีรพงษ์, and ขำวงษ์พินิจ. “ENHANCING STEM PROBLEM-SOLVING SKILLS OF UNDERGRADUATE STUDENTS BY USING THE INTEGRATED STEM EDUCATION WITH ARGUMENTATION LEARNING MODEL (6E+A)”. Journal of MCU Nakhondhat 6, no. 10 (January 22, 2020): 5179-5192. Accessed October 20, 2020. https://so03.tci-thaijo.org/index.php/JMND/article/view/227488.