Cita APA (7th ed.)

IMS LEARNING. (2004). ENHANCE YOUR ENGLISH PROFICIENCY. ISI.

Cita Chicago (17th ed.)

IMS LEARNING. ENHANCE YOUR ENGLISH PROFICIENCY. MUMBAI: ISI, 2004.

Cita MLA (9th ed.)

IMS LEARNING. ENHANCE YOUR ENGLISH PROFICIENCY. ISI, 2004.