http://e-repository.perpus.iainsalatiga.ac.id/19002
http://e-repository.perpus.iainsalatiga.ac.id/19350
http://e-repository.perpus.iainsalatiga.ac.id/12770
http://e-repository.perpus.iainsalatiga.ac.id/12786
http://e-repository.perpus.iainsalatiga.ac.id/12355
http://e-repository.perpus.iainsalatiga.ac.id/11303