http://e-repository.perpus.iainsalatiga.ac.id/16315
http://e-repository.perpus.iainsalatiga.ac.id/16192
http://e-repository.perpus.iainsalatiga.ac.id/16029
http://e-repository.perpus.iainsalatiga.ac.id/16016
http://e-repository.perpus.iainsalatiga.ac.id/16021