Sriphyong, C. and Siewwuttanagul, S. (2022) “THE COMPARISON OF SERVICE WAITING TIME PRE AND DURING COVID-19 SITUATION: THE CASE STUDY OF THE OPHTHALMIC DEPARTMENT OF METTA PRACHARAK HOSPITAL (WAT RAI KHING)”, Research Community and Social Development Journal. Nakhon Ratchasima, Thailand, 16(4), pp. 231–242. doi: 10.14456/nrru-rdi.2022.78.