http://e-repository.perpus.iainsalatiga.ac.id/13221
http://e-repository.perpus.iainsalatiga.ac.id/13325
http://e-repository.perpus.iainsalatiga.ac.id/13423
http://e-repository.perpus.iainsalatiga.ac.id/13485
http://e-repository.perpus.iainsalatiga.ac.id/15281