APA (7th ed.) Citation

Ho, S. W., Chan Swee Heng, & Yap ngee Thai. (2008). Interactive speaking. Penerbit Universiti Putra Malaysia.

Chicago Style (17th ed.) Citation

Ho, Sook Wah, Chan Swee Heng, and Yap ngee Thai. Interactive Speaking. Serdang, Selangor: Penerbit Universiti Putra Malaysia, 2008.

MLA (8th ed.) Citation

Ho, Sook Wah, et al. Interactive Speaking. Penerbit Universiti Putra Malaysia, 2008.