1.
Siengdee K. The Study on the Impact of Using Supplementary Learning Materials for the Art Learning Area in the Subject of Western Music Education on the Learning Achievement of Grade 2 students at Ramkhamhaeng University Demonstration School (Elementary level). edunsruj [internet]. 2025 Sep. 30 [cited 2026 Oct. 15];8(3):46-5. available from: https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/277998