Yaungyuen, R., P. Romsye, and S. Singlop. “The Development of a Learning Management Model Integrating Constructivist Theory with Phenomenon-Based Learning to Enhance Geo-Literacy among Grade 9 Students”. Journal for Developing the Social and Community, vol. 12, no. 2, Aug. 2025, pp. 561-86, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/289277.