Penphatcharin Pengporu และ Chakkree Sricharumedhiyan. (2022) Four Principles for the Role Assistant District Chief Officer. <i>Interdisciplinary Academic and Research Journal</i>, <i>1</i>(6), 53_64.Penphatcharin Pengporu และ Chakkree Sricharumedhiyan. "Four Principles for the Role Assistant District Chief Officer". Interdisciplinary Academic and Research Journal 1 (2022):53_64.Penphatcharin Pengporu และ Chakkree Sricharumedhiyan. Four Principles for the Role Assistant District Chief Officer. DR.KEN Institute of Academic Development and Promotion:ม.ป.ท. 2022.