Idarat al-nuzum : al-tariq ila al-qaran al-wahid wa al-'ishrin - Hammadi, Husayn (al-Qahirah : Maktabah'Ayn Shams, 1976)
p.32-33, 50-51, 62-62, 120-121, 176-177, 206-208, 238-239, 299, 333, 358, 414
Keywords: Industrial sociology