Taosi, Kanittha, Sirinapa Kijkuakul, and Nakkuntod Maliwan. “THE PROBLEM-BASED LEARNING APPROACH TO DEVELOP GRADE 10th STUDENTS’ COMMUNICATION SKILLS AND GROUP WORKING SKILLS IN THE TOPIC OF BASIC CHEMICALS FOR ORGANISMS”. JOURNAL OF EDUCATION NARESUAN UNIVERSITY 22, no. 2 (January 24, 2020): 31–48. Accessed May 24, 2022. https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/101167.