http://e-repository.perpus.iainsalatiga.ac.id/7796
http://e-repository.perpus.iainsalatiga.ac.id/9154
http://e-repository.perpus.iainsalatiga.ac.id/17840
http://e-repository.perpus.iainsalatiga.ac.id/13998
http://e-repository.perpus.iainsalatiga.ac.id/14169