http://e-repository.perpus.iainsalatiga.ac.id/9385
http://e-repository.perpus.iainsalatiga.ac.id/9167
http://e-repository.perpus.iainsalatiga.ac.id/9215
http://e-repository.perpus.iainsalatiga.ac.id/9102
http://e-repository.perpus.iainsalatiga.ac.id/9081