http://e-repository.perpus.iainsalatiga.ac.id/13110
http://e-repository.perpus.iainsalatiga.ac.id/13111
http://e-repository.perpus.iainsalatiga.ac.id/12904
http://e-repository.perpus.iainsalatiga.ac.id/12594
http://e-repository.perpus.iainsalatiga.ac.id/11680