http://e-repository.perpus.iainsalatiga.ac.id/10196
http://e-repository.perpus.iainsalatiga.ac.id/10164
http://e-repository.perpus.iainsalatiga.ac.id/10233
http://e-repository.perpus.iainsalatiga.ac.id/10787
http://e-repository.perpus.iainsalatiga.ac.id/11093