Gaya APA

Azar, B, S. (1992). Fundamentals of english grammar/Betty Schrampfer Azar (2nd.Ed.). New Jersey: Regent/Pranticehall.

Gaya MLA

Azar, Betty, Schrampfer. "Fundamentals of english grammar/Betty Schrampfer Azar". 2nd.Ed. New Jersey: Regent/Pranticehall, 1992. Text.