APA (7th ed.) Citation

Yani, A., & Yousif, K. O. (2013). How to gain basic language communication skills.

Chicago Style (17th ed.) Citation

Yani, Achmad, and Khalid Osman Yousif. How to Gain Basic Language Communication Skills. 2013.

MLA (8th ed.) Citation

Yani, Achmad, and Khalid Osman Yousif. How to Gain Basic Language Communication Skills. 2013.

Warning: These citations may not always be 100% accurate.