http://e-repository.perpus.iainsalatiga.ac.id/13782
http://e-repository.perpus.iainsalatiga.ac.id/13571
http://e-repository.perpus.iainsalatiga.ac.id/13623
http://e-repository.perpus.iainsalatiga.ac.id/13589
http://e-repository.perpus.iainsalatiga.ac.id/12319