http://e-repository.perpus.iainsalatiga.ac.id/11749
http://e-repository.perpus.iainsalatiga.ac.id/11698
http://e-repository.perpus.iainsalatiga.ac.id/12273
http://e-repository.perpus.iainsalatiga.ac.id/11999
http://e-repository.perpus.iainsalatiga.ac.id/12072