APA (7th ed.) Citation

Mangkulo, H. A., & 'Amirah Anas Anuar. Niaga online melalui Facebook. Synergy Media.

Chicago Style (17th ed.) Citation

Mangkulo, Hengky Alexander, and 'Amirah Anas Anuar. Niaga Online Melalui Facebook. KL: Synergy Media.

MLA (9th ed.) Citation

Mangkulo, Hengky Alexander, and 'Amirah Anas Anuar. Niaga Online Melalui Facebook. Synergy Media.

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