na INLIS000000000000569 20150331100531.0 97987672351 010-031500000000312 21 001.4 001.4 NAS m Nasution,S. Prof.Dr ,M.A 2001 METODE RESEARCH(penelitian ilmiah)/ S. Nasution Ed.1 jakarta Bumi Aksara 2003 viii, 156 hlm.: ; 21 cm. Penelitian perpusdakedirikota 1052(030059)/PU-KDR/HD/2013 1052(030059)/PU-KDR/HD/2013