APA (7th ed.) Citation

Yahaya, A., Suboh, A., Zakariya, Z., & Yahaya, F. (2005). Pengamatan. PTS Publication.

Chicago Style (17th ed.) Citation

Yahaya, Azizi, Asmah Suboh, Zurihanmi Zakariya, and Fawziah Yahaya. Pengamatan. PTS Publication, 2005.

MLA (9th ed.) Citation

Yahaya, Azizi, et al. Pengamatan. PTS Publication, 2005.