http://e-repository.perpus.iainsalatiga.ac.id/18289
http://e-repository.perpus.iainsalatiga.ac.id/18256
http://e-repository.perpus.iainsalatiga.ac.id/19409
http://e-repository.perpus.iainsalatiga.ac.id/18968
http://e-repository.perpus.iainsalatiga.ac.id/19028
http://e-repository.perpus.iainsalatiga.ac.id/18527