APA (7th ed.) Citation

Tan, R., & Umi Kalsom Mohd Azuddin. (2011). Dahsyatnya cabaran di pejabat. PTS Professional Pub.

Chicago Style (17th ed.) Citation

Tan, Roland, and Umi Kalsom Mohd Azuddin. Dahsyatnya Cabaran Di Pejabat. Batu Caves, Selangor: PTS Professional Pub, 2011.

MLA (8th ed.) Citation

Tan, Roland, and Umi Kalsom Mohd Azuddin. Dahsyatnya Cabaran Di Pejabat. PTS Professional Pub, 2011.