APA (7th ed.) Citation

Yani, A., Yousif, K. O., & Ab Hamid, A. R. (2014). How to gain basic language communication skills.

Chicago Style (17th ed.) Citation

Yani, Achmad, Khalid Osman Yousif, and Ahmad Rauyani Ab Hamid. How to Gain Basic Language Communication Skills. 2014.

MLA (8th ed.) Citation

Yani, Achmad, et al. How to Gain Basic Language Communication Skills. 2014.