NUANGSRI, K., CHANSIRISIRA, P. and TESSAPUTA, K. (2021) “DEVELOPMENTING A PROGRAM TO STRENGTHEN COLLECTIVE LEADERSHIP OF THAI PRIMARY SCHOOL ADMINISTRATORS”, Research Community and Social Development Journal. Nakhon Ratchasima, Thailand, 15(2), pp. 225–238. doi: 10.14456/nrru-rdi.2021.38.