http://e-repository.perpus.iainsalatiga.ac.id/10895
http://e-repository.perpus.iainsalatiga.ac.id/10839
http://e-repository.perpus.iainsalatiga.ac.id/11049
http://e-repository.perpus.iainsalatiga.ac.id/10963
http://e-repository.perpus.iainsalatiga.ac.id/11033