Gaya APA
Yahrif, M. (2018).
Basic Grammar in Speaking: Improving Speaking Skills By Grammatical Guidance .
Yogyakarta:
Pustaka Ilmu.
Gaya MLA
Yahrif, Muhammad.
"Basic Grammar in Speaking: Improving Speaking Skills By Grammatical Guidance".
Yogyakarta:
Pustaka Ilmu,
2018.
Text.