Kumtabut, Nirada, and Piyaluk Potiwan. 2026. “The Development of Cooperative Learning Activities using TGT Technique to Promote Academic Achievement on Economics for Phathomsuksa 6 students”. Journal for Developing the Social and Community 13 (2). Bangkok, Thailand:291-304. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/302783.