http://e-repository.perpus.iainsalatiga.ac.id/20077
http://e-repository.perpus.iainsalatiga.ac.id/18228
http://e-repository.perpus.iainsalatiga.ac.id/18700
http://e-repository.perpus.iainsalatiga.ac.id/18677
http://e-repository.perpus.iainsalatiga.ac.id/19027
http://e-repository.perpus.iainsalatiga.ac.id/19629