oleh k2
http://e-repository.perpus.iainsalatiga.ac.id/8251
http://e-repository.perpus.iainsalatiga.ac.id/8258
http://e-repository.perpus.iainsalatiga.ac.id/8726
http://e-repository.perpus.iainsalatiga.ac.id/8941
http://e-repository.perpus.iainsalatiga.ac.id/8958
http://e-repository.perpus.iainsalatiga.ac.id/8825