Kumjudpanpai, Sangkeat. “A Study of the Relationship of the Oboes Audio Features in Mekong River Region”. Research and Development Journal, Loei Rajabhat University 16, no. 58 (October 12, 2021): 99–108. accessed September 29, 2026. https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/249807.