http://e-repository.perpus.iainsalatiga.ac.id/18012
http://e-repository.perpus.iainsalatiga.ac.id/18024
http://e-repository.perpus.iainsalatiga.ac.id/18630
http://e-repository.perpus.iainsalatiga.ac.id/18114
http://e-repository.perpus.iainsalatiga.ac.id/18193