http://e-repository.perpus.iainsalatiga.ac.id/9236
http://e-repository.perpus.iainsalatiga.ac.id/9297
http://e-repository.perpus.iainsalatiga.ac.id/10503
http://e-repository.perpus.iainsalatiga.ac.id/11234
http://e-repository.perpus.iainsalatiga.ac.id/12013
http://e-repository.perpus.iainsalatiga.ac.id/11579