Kanathong, P. and Denduang, M. . (2024) “The Effect of Extra-curricular Activities Based on Kodaly’s Theory with Multimedia on Learning Achievement and International Music Notation Reading Skills of Mathayomsuksa 1 Students”, Suan Dusit Graduate School Academic Journal. Bankok, Thailand, 20(2), pp. 17–32. available at: https://so19.tci-thaijo.org/index.php/SDUGSAJ/article/view/112 (accessed: 10 April 2025).