na INLIS000000000000829 20130612085243 Ind 010-061300000000829 Ind 92(Abdil Aziz) 92(Abdil Aziz), Fir-k Firdaus AN Kepemimpinan khalifah Umar bin Abdil Aziz, KH. Firdaus AN 1985 Jakarta viii, 216 hlm, 21 cm Abdil Aziz, Umar NBPNMAT