http://e-repository.perpus.iainsalatiga.ac.id/10817
http://e-repository.perpus.iainsalatiga.ac.id/11610
http://e-repository.perpus.iainsalatiga.ac.id/12319
http://e-repository.perpus.iainsalatiga.ac.id/11748
http://e-repository.perpus.iainsalatiga.ac.id/11598