ตานีเห็ง น., ท่อแก้ว ว., เสรีรังสรรค์ ธ., and พวงงาม โ. “Communication Competency Development of Chief Executives of the Subdistrict Administration Organization in the Three Southern Border Provinces of Thailand”. Al-HIKMAH Journal, vol. 9, no. 17, June 2019, pp. 105-14, https://so01.tci-thaijo.org/index.php/HIKMAH/article/view/126067.