Gaya APA

LOUGHEED, L. (2020). BARRON'S IELTS: PRACTICE EXAMS (ED. 4). AMERIKA SERIKAT: KAPLAN NORTH AMERICA.

Gaya MLA

LOUGHEED, LIN. "BARRON'S IELTS: PRACTICE EXAMS". ED. 4 AMERIKA SERIKAT: KAPLAN NORTH AMERICA, 2020. Text.