http://e-repository.perpus.iainsalatiga.ac.id/15670
http://e-repository.perpus.iainsalatiga.ac.id/16266
http://e-repository.perpus.iainsalatiga.ac.id/13102
http://e-repository.perpus.iainsalatiga.ac.id/13266
http://e-repository.perpus.iainsalatiga.ac.id/17639
http://e-repository.perpus.iainsalatiga.ac.id/17361