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Erie Sudewo, Politik Ziswaf: Kumpulan Essay, 125-126
Shahid Hamid, An Islamic Alternative? Equality, Redistributive Justice, and The Welfare State in the Caliphate of Umar (Rta), www.renaissance.com.pk/ (diakses12 Januari 2008)
Syed Mumtaz Ali, Social Welfare: A Basic Islamic Value, http://muslimcanada. org/welfare.htm. diakses 10 Januari 200). Lihat pula Erie Sudewo, Politik Ziswaf: Kumpulan Essay (Jakarta: Circle of Information and Development, 2008) Syed Mumtaz Ali, Social Welfare: A Basic Islamic Value, http://muslimcanada. org/welfare.htm. diakses 10 Januari 200). Lihat pula Erie Sudewo, Politik Ziswaf: Kumpulan Essay (Jakarta: Circle of Information and Development, 2008)
Syed Mumtaz Ali, Social Welfare: A Basic Islamic Value, http://muslimcanada. org/welfare.htm. diakses 10 Januari 200). Lihat pula Erie Sudewo, Politik Ziswaf: Kumpulan Essay (Jakarta: Circle of Information and Development, 2008)
