PAN, L., and M. F. DEOCAMPO. “A STUDY OF UNDERGRADUATE STUDENTS’ ATTITUDE, MOTIVATION AND DIFFICULTIES ON THE USE OF MOBILE VOCABULARY LEARNING, ASSUMPTION UNIVERSITY”. Scholar: Human Sciences, vol. 14, no. 2, Aug. 2022, p. 1, http://www.assumptionjournal.au.edu/index.php/Scholar/article/view/5205.