pangna, Amornrat, and Ubolwan Preamsrirat. “Communication for Retentionand Change of Haenam-Chang’s Value, Napoon, Wangchin, Phrae”. Mahachula Academic Journal 2, no. 1 (August 20, 2018): 125–139. Accessed May 5, 2024. https://so04.tci-thaijo.org/index.php/JMA/article/view/141256.