D. Klabsati, PharkyuPhachordkitjaporn, and T. Somkhoayai, “THE DEVELOPMENT OF A PERSONNEL MANAGEMENT HANDBOOK BASED ON IDDHIPADA Ⅳ OF SCHOOL UNDER NAKHON SI THAMMARAT PRIMARY EDUCATIONAL SERVICE AREA OFFICE 3”, Education MCU, vol. 13, no. 2, pp. 423–436, Sep. 2026.