Lougheed, L. (2008). IELTS(International English Language Testing System). Binarupa Aksara.
Chicago Style (17th ed.) CitationLougheed, Lin. IELTS(International English Language Testing System). Binarupa Aksara, 2008.
MLA (8th ed.) CitationLougheed, Lin. IELTS(International English Language Testing System). Binarupa Aksara, 2008.
Warning: These citations may not always be 100% accurate.