Phisanphairot S. AN ADMINISTRATION MODEL BASED ON SYSTEM THEORY COMBINED WITH THE PARTICIPATION OF FOUR SECTION TO DEVELOPMENT CAREER LEARNING RESOURCE AND ENHANCE THE ESSENTIAL SKILLS FOR STUDENT CAREERS OF PONGKLANGNAMPRACHASAN SCHOOL UNDER THE CHIANG RAI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 2. JSC [internet]. 2025 Feb. 24 [cited 2026 Oct. 13];9(2):53-67. available from: https://so06.tci-thaijo.org/index.php/JSC/article/view/279000