http://e-repository.perpus.iainsalatiga.ac.id/10036
http://e-repository.perpus.iainsalatiga.ac.id/9226
http://e-repository.perpus.iainsalatiga.ac.id/9938
http://e-repository.perpus.iainsalatiga.ac.id/10088
http://e-repository.perpus.iainsalatiga.ac.id/9916
http://e-repository.perpus.iainsalatiga.ac.id/8687