http://e-repository.perpus.iainsalatiga.ac.id/8900
http://e-repository.perpus.iainsalatiga.ac.id/9664
http://e-repository.perpus.iainsalatiga.ac.id/9351
http://e-repository.perpus.iainsalatiga.ac.id/9434
http://e-repository.perpus.iainsalatiga.ac.id/9106