Wichiansan, S. ., Chaowakeeratiphong, T. and Sompongtam, C. (2019) “STRATEGY FOR LEARNING LEADERSHIP DEVELOPMENT OF SECONDARY SCHOOL ADMINISTRATORS IN PHITSANULOK PROVINCE”, Journal of Education and Innovation, 22(2), pp. 239–248. Available at: https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/207835 (Accessed: 16 April 2024).