Tayraukham, Assoc. Prof. Dr. Sombat, Kanjana Jitkangwan, and Wacharapong Rakapang. 2016. “Mathematical Literacy Development by Integrated Teaching Method”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 3 (3):11-20. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/211932.