Hasanayn, Sayyid Abu Bakr, Tariqat al-khidmah al-ijtima'iyah fi tanzim al-mujtama' / Duktur Sayyid Abu Bakr Hasanayn. - al-Tab'ah al-thalithah. - 583 pages : illustrations ; 24 cm. ISBN: Hadiah Subjects--Topical Terms: Social service.