http://e-repository.perpus.iainsalatiga.ac.id/10876
http://e-repository.perpus.iainsalatiga.ac.id/11083
http://e-repository.perpus.iainsalatiga.ac.id/10795
http://e-repository.perpus.iainsalatiga.ac.id/10914
http://e-repository.perpus.iainsalatiga.ac.id/11167