http://e-repository.perpus.iainsalatiga.ac.id/13007
http://e-repository.perpus.iainsalatiga.ac.id/13482
http://e-repository.perpus.iainsalatiga.ac.id/13702
http://e-repository.perpus.iainsalatiga.ac.id/14307
http://e-repository.perpus.iainsalatiga.ac.id/14687