Gaya APA

Widjaja, D, G. (2015). Complete English Grammar and The Exercises : Part I and Part II (26 chapters) and (35 Chapters) with Clear Explanations, Examples, and Exercises . Jakarta: Bhuana Ilmu populer.

Gaya MLA

Widjaja, Dra., Grace. "Complete English Grammar and The Exercises : Part I and Part II (26 chapters) and (35 Chapters) with Clear Explanations, Examples, and Exercises". Jakarta: Bhuana Ilmu populer, 2015. Teks.