Al Jandeel, H. S.; Salih Al Jubory, M. A. Ceremonies of Inauguration of Caliphate by Abassi Caliphate and Mamluki Sultan in Bahriyya Mamluks (1250-1383 A.D / 648-784 A.H):. J. Tikrit U Hum. 2020, 27, 253-273.