http://e-repository.perpus.iainsalatiga.ac.id/19178
http://e-repository.perpus.iainsalatiga.ac.id/19183
http://e-repository.perpus.iainsalatiga.ac.id/19854
http://e-repository.perpus.iainsalatiga.ac.id/19623
http://e-repository.perpus.iainsalatiga.ac.id/18072
http://e-repository.perpus.iainsalatiga.ac.id/19308