Polsan, N. (2021) “A Comparative Study of Grades 10 and 11 Students’ Motivation for Learning English as a Foreign Language under Gamification and Teacher-Centered Activities at a Private School in Bangkok”, AU Hybrid International Conference 2024 on " Entrepreneurship & Sustainability in the Digital Era" under the theme of "People Centric Knowledge in Intelligence World" , 2(1), pp. 248-257. Available at: https://assumptionjournal.au.edu/index.php/icesde/article/view/5744 (Accessed: 31May2025).