Kuan, W. L. (2022) “Students’ Perception of the CoI-based Online Flipped Approach: Learning Mandarin as a Foreign Language”, Human Behavior, Development and Society, 23(3), pp. 98–107. available at: https://so01.tci-thaijo.org/index.php/hbds/article/view/262279 (accessed: 16 September 2026).