Kachathorn, Natthapon. 2026. “Development of a Competency-Based Mathematics Enrichment Curriculum through Project-Based Learning Integrated with Mathematical Modeling to Enhance Mathematical and Data Literacy of Upper Secondary Students”. Journal of MCU Nakhondhat 13 (5). Nakhon Si Thammarat, Thailand:261-72. https://so03.tci-thaijo.org/index.php/JMND/article/view/299638.