APA (7th ed.) Citation

Osman, N., & Sahrir, M. S. (2011). Modern trends towards effectiveness of textbooks for teaching Arabic as a second or foreign language.

Chicago Style (17th ed.) Citation

Osman, Nurulhuda, and Muhammad Sabri Sahrir. Modern Trends Towards Effectiveness of Textbooks for Teaching Arabic as a Second or Foreign Language. 2011.

MLA (8th ed.) Citation

Osman, Nurulhuda, and Muhammad Sabri Sahrir. Modern Trends Towards Effectiveness of Textbooks for Teaching Arabic as a Second or Foreign Language. 2011.

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