Al Baroroh, A. and Hani, U. 2020. Students’ Mastery of Adjective Clause: A Case Study towards the Second Semester Students of English Department. Lexeme : Journal of Linguistics and Applied Linguistics. 2, 1 (Sep. 2020), 36–43. DOI:https://doi.org/10.32493/ljlal.v2i1.6994.