http://e-repository.perpus.iainsalatiga.ac.id/18490
http://e-repository.perpus.iainsalatiga.ac.id/18590
http://e-repository.perpus.iainsalatiga.ac.id/19324
http://e-repository.perpus.iainsalatiga.ac.id/19353
http://e-repository.perpus.iainsalatiga.ac.id/19515
http://e-repository.perpus.iainsalatiga.ac.id/19986