APA (7th ed.) Citation

Basha, H. S., Hidayat, Y. S., & Hariadi, D. (2007). The Secret of Happiness. Syaamil Cipta Media.

Chicago Style (17th ed.) Citation

Basha, Hasan Syamsi, Yadi Saeful Hidayat, and Dedi Hariadi. The Secret of Happiness. Syaamil Cipta Media, 2007.

MLA (8th ed.) Citation

Basha, Hasan Syamsi, et al. The Secret of Happiness. Syaamil Cipta Media, 2007.