YUTDHANA, S. and WONGKUMSAI, S. (2018) “THE EFFECTS OF METACOGNITIVE VOCABULARY STRATEGY TRAINING ON VOCABULARY ACHIEVEMENT AND RETENTION OF NAKHONRATCHASIMA RAJABHAT UNIVERSITY STUDENTS: THE EFFECTS OF METACOGNITIVE VOCABULARY STRATEGY TRAINING ON VOCABULARY ACHIEVEMENT AND RETENTION OF NAKHONRATCHASIMA RAJABHAT UNIVERSITY STUDENTS”, Research Community and Social Development Journal. Nakhon Ratchasima, Thailand, 12((Special), pp. 185–198. doi: 10.14456/nrru-rdi.2018.33.