2002-05-23 [2020-07-15]. ISBN 9781139434652. (原始内容存档于2020-05-16) (英语). Shahid, Irfan; Shahîd, Irfan. Rome and the Arabs: A Prolegomenon to the Study of Byzantium
(原始内容存档于2018-12-26). Muhammad Bilal, Nadir Guramani. Shahbaz to succeed Nawaz as PM, Shahid Khaqan Abbasi to take over in the interim. Dawn (Herald). 29 July 2017 [29