APA Style

Yahrif, M., Dahniar, . (2021). The Art of English for University Students (Cet.1). Yogyakarta: Pustaka Ilmu.

MLA Style

Yahrif, Muhammad., Dahniar, . "The Art of English for University Students". Cet.1 Yogyakarta: Pustaka Ilmu, 2021. Text.