http://e-repository.perpus.iainsalatiga.ac.id/8813
http://e-repository.perpus.iainsalatiga.ac.id/8933
http://e-repository.perpus.iainsalatiga.ac.id/8914
http://e-repository.perpus.iainsalatiga.ac.id/8941
http://e-repository.perpus.iainsalatiga.ac.id/8448