APA (7th ed.) Citation

Nallaya, S., & Chakrabarty, L. (2013). Polish your English: A textbook for English language proficiency courses. Penerbit Universiti Pendidikan Sultan Idris.

Chicago Style (17th ed.) Citation

Nallaya, Sasikala, and Leela Chakrabarty. Polish Your English: A Textbook for English Language Proficiency Courses. Perak, Malaysia: Penerbit Universiti Pendidikan Sultan Idris, 2013.

MLA (9th ed.) Citation

Nallaya, Sasikala, and Leela Chakrabarty. Polish Your English: A Textbook for English Language Proficiency Courses. Penerbit Universiti Pendidikan Sultan Idris, 2013.