http://e-repository.perpus.iainsalatiga.ac.id/17383
http://e-repository.perpus.iainsalatiga.ac.id/17439
http://e-repository.perpus.iainsalatiga.ac.id/17558
http://e-repository.perpus.iainsalatiga.ac.id/17662
http://e-repository.perpus.iainsalatiga.ac.id/17805