Sorrasit, Chaleaw, and Chaowarit Jongkatkorn. 2022. “THE SRATEGY TO PROMOTE THE EXCELLENCE OF MUSIC OF NONGKHAI WITTAYAKARN SCHOOL UNDER THE SECONDARY EDUCATION SERVICE AREA OFFICE 21”. Journal of MCU Nakhondhat 9 (8). Nakhon Si Thammarat, Thailand:276-91. https://so03.tci-thaijo.org/index.php/JMND/article/view/263284.