Tangjitnusorn, K., and P. Sukavatee. “THE EFFECTS OF COMMUNITY-BASED INSTRUCTION USING HYBRID LEARNING ON ENGLISH ORAL COMMUNICATION FOR TOURISM INDUSTRY OF UNDERGRADUATE STUDENTS”. JOURNAL OF EDUCATION NARESUAN UNIVERSITY, vol. 18, no. 4, Nov. 2016, pp. 14-28, https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/70946.