1. Abbas, K. F. (2013). Ajaibnya gerakan shalat bagi perkembangan janin [Miracle of salat movements for fetal development]. Yogyakarta: Diva Press.
2. Al-Krenawi, A., & Graham, J. (1999). Social work and Koranic mental health healers. International Social Work, 42(1), 53–65.
3. Al-Qurtuby, S. (2003). ArusCina-Islam-Jawa: Bongkar sejarah atas peranan Tionghoa dalam penyebaran agma Islam di Nusantara abad XV & XVI [A confluence of China-Islam-Java: Exploring histories of roles of Chinese for the spread of Islam in the Indonesian archipelago in the 15th and 16th centuries]. Yogyakarta: Inspeal Ahimsakarya Press.
4. Asad, T. (1993). Genealogies of religion: Discipline and reasons of power in Christianity and Islam. Baltimore: The Johns Hopkins University Press.
5. Azizi, F. (2002). Research in Islamic fasting and health. Annals of Saudi Medicine, 22(3&4), 186–191.