Niyomyaht, S. , Suankaew, J. , Boonsanong, W. , Saveangsub, T. and Wanichchananan, S. 2023. HOW TO USE THEORIES FOR MANAGERIAL ACTIVITIES IN THE PUBLIC AND PRIVATE ORGANIZATIONS. Journal of MCU Nakhondhat. 10, 4 (Apr. 2023), 453–466.