Cruthaka, C., Chancharoen, D., Tungprapa, T., Ingard, A. and Suksod, P. 2020. Efficiency Predictive Factors for Professional Ability of Ramkhamhaeng University Lecturers for ASEAN Socio-Cultural Community. Asian Journal of Education and Training. 6, 3 (Sep. 2020), 536–540. DOI:https://doi.org/10.20448/journal.522.2020.63.536.540.