N. Uraiworn, Y. Kamolvoradej, and M. Sanghirun, “A STUDY OF MANAGEMENT DEVELOPMENT ACTIVITIES MODEL OF NAMMAN SCHOOL, HAT LA SCHOOL NETWORK, UNDER THE OFFICE OF UTTARADIT PRIMARY EDUCATION SERVICE AREA 2”, JMND, vol. 7, no. 9, pp. 344–358, Sep. 2020.