Gaya APA

Jusuf, Z, D. (1991). Problems in Using English Adverbs : A Case Study At SMAN 1 Ujung Pandang . Makassar: Fak. Sastra 45 Makassar.

Gaya MLA

Jusuf, Zaenab, Djamaluddin. "Problems in Using English Adverbs : A Case Study At SMAN 1 Ujung Pandang". Makassar: Fak. Sastra 45 Makassar, 1991. Text.