APA (7th ed.) Citation

Riyanto, S. (2011). Otodidak Belajar 16 Tenses. Pustaka Widyatama.

Chicago Style (17th ed.) Citation

Riyanto, Slamet. Otodidak Belajar 16 Tenses. Pustaka Widyatama, 2011.

MLA (8th ed.) Citation

Riyanto, Slamet. Otodidak Belajar 16 Tenses. Pustaka Widyatama, 2011.

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