Imsombat K, Lenanant A. DEVELOPMENT OF 21st CENTURY LEARNING OF STUDENS IN NONG CHUMSAENG SCHOOL BY APPLYING PARTICIPATORY RESEARCH APPROACH. JHS.TRU [internet]. 2019 Sep. 1 [cited 2026 Sep. 24];13(3):64-76. available from: https://so03.tci-thaijo.org/index.php/trujournal/article/view/214065