APA Citation

Hengky Alexander Mangkulo. Facebook For Sekolahan. Elex Media Komputindo.

Chicago Style Citation

Hengky Alexander Mangkulo. Facebook For Sekolahan. Elex Media Komputindo.

MLA Citation

Hengky Alexander Mangkulo. Facebook For Sekolahan. Elex Media Komputindo.

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