Asakit, Premsak, Napaporn Khantanapha, and Rapeepun Piriyakul. “Knowledge Exploration and Exploitation for Micro SMS in Upper Northern Thailand”. Ph.D. in Social Sciences Journal 12, no. 1 (April 28, 2022): 57–72. accessed April 23, 2025. https://so05.tci-thaijo.org/index.php/phdssj/article/view/226816.