HUMMEL, H. 20 Jahre Biblische Gemeinde Backnang. Backnanger Jahrbuch, [S. l.], v. 21, p. 240–241, 2013. DOI: 10.53458/bjb.v21i.9579. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9579. Acesso em: 3 juli. 2024.