http://e-repository.perpus.iainsalatiga.ac.id/14544
http://e-repository.perpus.iainsalatiga.ac.id/14618
http://e-repository.perpus.iainsalatiga.ac.id/15196
http://e-repository.perpus.iainsalatiga.ac.id/13854
http://e-repository.perpus.iainsalatiga.ac.id/15602