APA (7th ed.) Citation

Mathers, D., & Farmer, A. (1994). Otak. Pustaka Sistem Pelajaran.

Chicago Style (17th ed.) Citation

Mathers, Douglas, and Andrew Farmer. Otak. Kuala Lumpur: Pustaka Sistem Pelajaran, 1994.

MLA (9th ed.) Citation

Mathers, Douglas, and Andrew Farmer. Otak. Pustaka Sistem Pelajaran, 1994.

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