http://e-repository.perpus.iainsalatiga.ac.id/16029
http://e-repository.perpus.iainsalatiga.ac.id/15950
http://e-repository.perpus.iainsalatiga.ac.id/15904
http://e-repository.perpus.iainsalatiga.ac.id/17445
http://e-repository.perpus.iainsalatiga.ac.id/19246
http://e-repository.perpus.iainsalatiga.ac.id/19060