http://e-repository.perpus.iainsalatiga.ac.id/14097
http://e-repository.perpus.iainsalatiga.ac.id/14196
http://e-repository.perpus.iainsalatiga.ac.id/13885
http://e-repository.perpus.iainsalatiga.ac.id/15193
http://e-repository.perpus.iainsalatiga.ac.id/15169