S. . Dunkon and S. Chamnanputtiporn, “PROVIDING REGISTRATION SERVICES FOR THE ELDERLY ACCORDING TO THE 4 PRINCIPLES OF THE PERSONNEL SUBDISTRICT ADMINISTRATION ORGANIZATON IN RON PHIBUN DISTRICT NAKHON SI THAMMARAT PROVINCE”, JMND, vol. 11, no. 8, pp. 39–47, Aug. 2024.