http://e-repository.perpus.iainsalatiga.ac.id/9800
http://e-repository.perpus.iainsalatiga.ac.id/9097
http://e-repository.perpus.iainsalatiga.ac.id/9553
http://e-repository.perpus.iainsalatiga.ac.id/10094
http://e-repository.perpus.iainsalatiga.ac.id/9109