http://e-repository.perpus.iainsalatiga.ac.id/8436
http://e-repository.perpus.iainsalatiga.ac.id/9240
http://e-repository.perpus.iainsalatiga.ac.id/9636
http://e-repository.perpus.iainsalatiga.ac.id/9644
http://e-repository.perpus.iainsalatiga.ac.id/9967