Mustafa Zubair. (2000). Systematic modern English: Effective guide to understanding English grammar = Sistematik bahasa Inggeris moden : kaedah berkesan untuk memahami bahasa Inggeris moden. Thinker's Library.
Chicago Style (17th ed.) CitationMustafa Zubair. Systematic Modern English: Effective Guide to Understanding English Grammar = Sistematik Bahasa Inggeris Moden : Kaedah Berkesan Untuk Memahami Bahasa Inggeris Moden. Batu Caves, Selangor: Thinker's Library, 2000.
MLA (9th ed.) CitationMustafa Zubair. Systematic Modern English: Effective Guide to Understanding English Grammar = Sistematik Bahasa Inggeris Moden : Kaedah Berkesan Untuk Memahami Bahasa Inggeris Moden. Thinker's Library, 2000.
Warning: These citations may not always be 100% accurate.