Nayef Alqaedah, A. (1). The struggle for power during the reign of Sultan Mahmoud bin Mohammad bins Malikshah Seljuk (511-525 A.H. / 1117-1130 A.D.). Opción, 36(91), 1405-1452. Recuperado a partir de https://www.produccioncientificaluz.org/index.php/opcion/article/view/34459