Choi, Y. J., Lee, S., Lee, E., Park, C. and Park, S. (2022) “Happy Geoscience Edu: A new geoscience education system in the time of COVID-19”, Thai Geoscience Journal. Bangkok, Thailand, 3(4), pp. 1–4. available at: https://ph03.tci-thaijo.org/index.php/TGJ/article/view/1796 (accessed: 10 December 2025).