Suwannachairob, Saowalak, and Sansanee Nenthien. “Effects of Organizing Mathematics Learning Activities Using Inquiry-Based Learning on Mathematical Knowledge and Critical Thinking of Ninth Grade Students”. An Online Journal of Education 15, no. 2 (October 28, 2020): OJED1502021 (11 pages). Accessed May 6, 2024. https://so01.tci-thaijo.org/index.php/OJED/article/view/242207.