W. . Nantasang, P. . Ponsit, P. . Outhaichut, and P. . Unruean, “IMPLEMENTATION OF QUALITY ASSURANCE IN BASIC EDUCATIONAL INSTITUTIONS UNDER THE NONG BUA LAM PHU PRIMARY EDUCATIONAL SERVICE OFFICE AREA 1”, JBER, vol. 7, no. 3, pp. 278–290, Dec. 2021.