http://e-repository.perpus.iainsalatiga.ac.id/8442
http://e-repository.perpus.iainsalatiga.ac.id/8463
http://e-repository.perpus.iainsalatiga.ac.id/8705
http://e-repository.perpus.iainsalatiga.ac.id/8406
http://e-repository.perpus.iainsalatiga.ac.id/8822