c.1,2 olah
http://e-repository.perpus.iainsalatiga.ac.id/19968
http://e-repository.perpus.iainsalatiga.ac.id/19060
http://e-repository.perpus.iainsalatiga.ac.id/18502
http://e-repository.perpus.iainsalatiga.ac.id/19178
http://e-repository.perpus.iainsalatiga.ac.id/15419