http://e-repository.perpus.iainsalatiga.ac.id/19777
http://e-repository.perpus.iainsalatiga.ac.id/19929
http://e-repository.perpus.iainsalatiga.ac.id/19095
http://e-repository.perpus.iainsalatiga.ac.id/18639
http://e-repository.perpus.iainsalatiga.ac.id/18989
http://e-repository.perpus.iainsalatiga.ac.id/18704