http://e-repository.perpus.iainsalatiga.ac.id/14385
http://e-repository.perpus.iainsalatiga.ac.id/13982
http://e-repository.perpus.iainsalatiga.ac.id/14257
http://e-repository.perpus.iainsalatiga.ac.id/14057
http://e-repository.perpus.iainsalatiga.ac.id/14451