Picken, G. N. (2018). The Concept of sunna in the Early Shāfi'ī Madhhab. The Sunna and its status in Islamic law, 139-162.
Citazione stile Chigago Style (17a edizione)Picken, Gavin N. "The Concept of Sunna in the Early Shāfi'ī Madhhab." The Sunna and Its Status in Islamic Law 2018: 139-162.
Citatione MLA (9a ed.)Picken, Gavin N. "The Concept of Sunna in the Early Shāfi'ī Madhhab." The Sunna and Its Status in Islamic Law, 2018, pp. 139-162.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.