DRAGOJLOVIĆ, D. Дуализам средњовековних јеретика : . Balcanica - Annual of the Institute for Balkan Studies, [S. l.], n. X, p. 75–92, 1979. Disponível em: https://balcanica.rs/index.php/journal/article/view/1283. Acesso em: 7 apr. 2025.