FAJAR, M.; GUNA WINARTI, Y. The Testing of Existence Wagner’s Law in Papua Province. Jurnal Matematika MANTIK, [S. l.], v. 7, n. 2, p. 132–139, 2021. DOI: 10.15642/mantik.2021.7.2.132-139. Disponível em: https://jurnalsaintek.uinsby.ac.id/index.php/mantik/article/view/1260. Acesso em: 25 apr. 2024.