http://e-repository.perpus.iainsalatiga.ac.id/11637
http://e-repository.perpus.iainsalatiga.ac.id/12016
http://e-repository.perpus.iainsalatiga.ac.id/11661
http://e-repository.perpus.iainsalatiga.ac.id/13365
http://e-repository.perpus.iainsalatiga.ac.id/13610