Padungkit N, Somkhaoyai T, Klubsri S. THE DEVELOPMENT OF DESIRABLE CHARACTERISTICS OF STUDENT DISCIPLINE BASED ON TRISIKKHA OF PETCHARIK DEMONSTRATION SCHOOL UNDER NAKHON SI THAMMARAT MUNICIPALITY. Education MCU [internet]. 2025 Apr. 30 [cited 2026 Sep. 1];12(1):144-57. available from: https://so02.tci-thaijo.org/index.php/EDMCU/article/view/277106