APA (7th ed.) Citation

Riyanto, B. S. (2008). The 1 st Student's Choice Toefl. Al Alaq Pustaka.

Chicago Style (17th ed.) Citation

Riyanto, By Slamet. The 1 St Student's Choice Toefl. Al Alaq Pustaka, 2008.

MLA (8th ed.) Citation

Riyanto, By Slamet. The 1 St Student's Choice Toefl. Al Alaq Pustaka, 2008.

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