APA (7th ed.) Citation

Idrus, H., Salleh, R., & Lim Abdullah, M. R. T. (2011). Oral Communication Ability In English: An Essential Skill For Engineering Graduates. Penerbit Universiti Sains Malaysia.

Chicago Style (17th ed.) Citation

Idrus, Hairuzila, Rohani Salleh, and Muhammad Ridhuan Tony Lim Abdullah. Oral Communication Ability In English: An Essential Skill For Engineering Graduates. Penerbit Universiti Sains Malaysia, 2011.

MLA (9th ed.) Citation

Idrus, Hairuzila, et al. Oral Communication Ability In English: An Essential Skill For Engineering Graduates. Penerbit Universiti Sains Malaysia, 2011.