APA Style

Riyanto, S, ;. (2010). Essentials of English Grammar for Fluent English / Slamet Riyanto (1). Yogyakarta :: PUSTAKA PELAJAR,.

MLA Style

Riyanto, Slamet, ;. "Essentials of English Grammar for Fluent English / Slamet Riyanto". 1 Yogyakarta :: PUSTAKA PELAJAR,, 2010. .