المصادر الاجنبية

* Bosworth, Clifford Edmund, " The Ghaznavids thrir Empeir AFFhanistan and Estern Iran" 1040/ 994 ( Edinburgh university, 1963).

* Encyclopeadia of Religious and Ethics ( London: simpkin marshall, 1937 ).

* The Encyclopeadia of islam, Edited by: M. Th Houtsma, T. W. Arndd ( London: Luzac and co, 1913 ).

* The History of Nishapur, Edition by : Richard Frye ( Boston : Harvard colloge, 1965 ).

* Macdonald, Duncan. B., Development of muslim theory Jurisprudence and constitutional theory ( newdelhi : Amarko book Agency, 1973 ).

* Makdisi, George, Ibn AQil EtLA RESURGence De L'isLAM Traditionaliste Au xle siecle ( Ve siecle de I'Hegire ) ( Damas, 1963 ).

* Watt, W. Montgomery, Free will and predestination in early islam ( London : Luzac and company LTD, 1948 ).