Gaya APA

Lougheed, D, L. (). Barron's The Leader in Test Preparation IELTS . Tangerang Selatan: Binarupa Aksara Publishing.

Gaya MLA

Lougheed, Dr., Lin. "Barron's The Leader in Test Preparation IELTS". Tangerang Selatan: Binarupa Aksara Publishing, . .