Rungruangthum, M., Hongsacha, N., & Wangkaewhiran, T. (2022). An Analysis of Students’ Attitudes by Using Word Frequency and Word Cloud Visualization. ECT Journal (Education and Communication Technology Journal), 17(22), 63–77. Retrieved from https://so01.tci-thaijo.org/index.php/ectstou/article/view/253365