http://e-repository.perpus.iainsalatiga.ac.id/9091
http://e-repository.perpus.iainsalatiga.ac.id/9095
http://e-repository.perpus.iainsalatiga.ac.id/9427
http://e-repository.perpus.iainsalatiga.ac.id/10755
http://e-repository.perpus.iainsalatiga.ac.id/11315