APA (7th ed.) Citation

Abdullah, S., & NIL. (2009). The Silent Classroom: What makes the imbalance? NIL.

Chicago Style (17th ed.) Citation

Abdullah, Shamsul, and NIL. The Silent Classroom: What Makes the Imbalance? NIL, 2009.

MLA (9th ed.) Citation

Abdullah, Shamsul, and NIL. The Silent Classroom: What Makes the Imbalance? NIL, 2009.

Warning: These citations may not always be 100% accurate.