http://e-repository.perpus.iainsalatiga.ac.id/19023
http://e-repository.perpus.iainsalatiga.ac.id/19315
http://e-repository.perpus.iainsalatiga.ac.id/18099
http://e-repository.perpus.iainsalatiga.ac.id/18114
http://e-repository.perpus.iainsalatiga.ac.id/17922