http://e-repository.perpus.iainsalatiga.ac.id/10463
http://e-repository.perpus.iainsalatiga.ac.id/10632
http://e-repository.perpus.iainsalatiga.ac.id/10436
http://e-repository.perpus.iainsalatiga.ac.id/10717
http://e-repository.perpus.iainsalatiga.ac.id/10766