APA Citation

Mangkulo, H. A. (2010). Facebook on Blackberry. PT. Elex Media Komputindo.

Chicago Style Citation

Mangkulo, Hengky Alexander. Facebook On Blackberry. PT. Elex Media Komputindo, 2010.

MLA Citation

Mangkulo, Hengky Alexander. Facebook On Blackberry. PT. Elex Media Komputindo, 2010.

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