http://e-repository.perpus.iainsalatiga.ac.id/14260
http://e-repository.perpus.iainsalatiga.ac.id/14129
http://e-repository.perpus.iainsalatiga.ac.id/14571
http://e-repository.perpus.iainsalatiga.ac.id/19178
http://e-repository.perpus.iainsalatiga.ac.id/19060
http://e-repository.perpus.iainsalatiga.ac.id/18502