ABSTRACT Albanna, Muhammad Algaf (2023). "Investigating Referential Language Functions Used by Students in the Fourth Semester of English Department Tidar University Academic Year 2022/2023". A Paper. Magelang: English Department, Faculty of Education and Teacher Training, Tidar University. Moch. Malik Al Firdaus, S.Pd., M.Pd. as the first advisor, Atsani Wulansari, M.Hum. as the second advis…