แก้วบุตร พ., “STUDENTS’ ATTENTION TO THE ADDITIONAL ACTIVITIES OUTSIDE THE CHINESE CLASS: CASE STUDY OF STUDENTS THAT STUDY CHINESE PRINCE OF SONGKLA UNIVERSITY, SURAT THANI CAMPUS”, SWRD. J. Humanit. Soc. Sci., vol. 12, no. 23, January-June, pp. 27–38, Jun. 2020.