APA (7th ed.) Citation

Al-Misri & Abdul Rachman Saleh Siregar M.A. (2013). The power of smile: Dahsyatnya senyuman. Al-Hidayah Publication.

Chicago Style (17th ed.) Citation

Al-Misri and Abdul Rachman Saleh Siregar M.A. The Power of Smile: Dahsyatnya Senyuman. Batu Caves, Selangor: Al-Hidayah Publication, 2013.

MLA (8th ed.) Citation

Al-Misri and Abdul Rachman Saleh Siregar M.A. The Power of Smile: Dahsyatnya Senyuman. Al-Hidayah Publication, 2013.