http://e-repository.perpus.iainsalatiga.ac.id/9089
http://e-repository.perpus.iainsalatiga.ac.id/8176
http://e-repository.perpus.iainsalatiga.ac.id/9897
http://e-repository.perpus.iainsalatiga.ac.id/8946
http://e-repository.perpus.iainsalatiga.ac.id/9499