1-3 olah
http://e-repository.perpus.iainsalatiga.ac.id/1745/
http://e-repository.perpus.iainsalatiga.ac.id/9532
http://e-repository.perpus.iainsalatiga.ac.id/9345
http://e-repository.perpus.iainsalatiga.ac.id/9689
http://e-repository.perpus.iainsalatiga.ac.id/9446