http://e-repository.perpus.iainsalatiga.ac.id/18502
http://e-repository.perpus.iainsalatiga.ac.id/19894
http://e-repository.perpus.iainsalatiga.ac.id/19912
http://e-repository.perpus.iainsalatiga.ac.id/20051
http://e-repository.perpus.iainsalatiga.ac.id/20029
http://e-repository.perpus.iainsalatiga.ac.id/19505