Simorangkir, R. D. ., Naibaho, T. R. A. ., Sinambela, P. . and Panjaitan, C. T. . (2019) “AN ANALYSIS OF MATERIALS IN A STUDENT TEXTBOOK AT SECONDARY SCHOOL IN 8th GRADE”, JEE (Journal of English Education), 5(2), pp. 123–129. doi: 10.30606/jee.v5i2.569.