http://e-repository.perpus.iainsalatiga.ac.id/10179
http://e-repository.perpus.iainsalatiga.ac.id/10550
http://e-repository.perpus.iainsalatiga.ac.id/11314
http://e-repository.perpus.iainsalatiga.ac.id/10954
http://e-repository.perpus.iainsalatiga.ac.id/11245