La mayor seguridad a la hora de contratarnos.
Louvain: Peeters, 1993: 13-30. Paris: L'Association Ahl-Elbeit, 1987. International Journal of Middle East Studies( Nov. Detroit: Islamic Center of America, 1986. Philip Sherrad and Liadain Sherrard. New York: KPI and Islamic Publications, 1986.