Gaya APA

Riyanto, S., NH, L, N, A, E. (2007). A Handbook of English Grammar : An Effective Way Towards Fluent English . Yogyakarta: Pustaka Pelajar.

Gaya MLA

Riyanto, Slamet., NH, Leila, NH, And, Emillia. "A Handbook of English Grammar : An Effective Way Towards Fluent English". Yogyakarta: Pustaka Pelajar, 2007. Text.