http://e-repository.perpus.iainsalatiga.ac.id/17602
http://e-repository.perpus.iainsalatiga.ac.id/11607
http://e-repository.perpus.iainsalatiga.ac.id/17281
http://e-repository.perpus.iainsalatiga.ac.id/17628
http://e-repository.perpus.iainsalatiga.ac.id/17561