APA (7th ed.) Citation

Muhammad Alexander & Sasongko, W. (2010). Armagedon 2012: Bencana akhir zaman. PTS Islamika.

Chicago Style (17th ed.) Citation

Muhammad Alexander and Wisnu Sasongko. Armagedon 2012: Bencana Akhir Zaman. Selangor: PTS Islamika, 2010.

MLA (9th ed.) Citation

Muhammad Alexander and Wisnu Sasongko. Armagedon 2012: Bencana Akhir Zaman. PTS Islamika, 2010.

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