http://e-repository.perpus.iainsalatiga.ac.id/8416
http://e-repository.perpus.iainsalatiga.ac.id/9163
http://e-repository.perpus.iainsalatiga.ac.id/9617
http://e-repository.perpus.iainsalatiga.ac.id/9164
http://e-repository.perpus.iainsalatiga.ac.id/9607