Lingga, H. D. (2007). Advanced English Grammar for TOEFL Preparation: Kunci sukses menghadapi TOEFL. Puspa Swara.
Chicago Style (17th ed.) CitationLingga, Hotben D. Advanced English Grammar for TOEFL Preparation: Kunci Sukses Menghadapi TOEFL. Puspa Swara, 2007.
MLA (8th ed.) CitationLingga, Hotben D. Advanced English Grammar for TOEFL Preparation: Kunci Sukses Menghadapi TOEFL. Puspa Swara, 2007.
Warning: These citations may not always be 100% accurate.