APA (7th ed.) Citation

Agung, G. (2009). Step by step iphone. Gramedia.

Chicago Style (17th ed.) Citation

Agung, Gregorius. Step by Step Iphone. Gramedia, 2009.

MLA (8th ed.) Citation

Agung, Gregorius. Step by Step Iphone. Gramedia, 2009.

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