PALI, K. j.; LE ROUX, De La Harpe. A descriptive-analysis of the views of ordinary citizens on littering: An empirical study in the Bloemfontein Central Business District (CBD). Tydskrif vir Christelike Wetenskap | Journal for Christian Scholarship, [S. l.], v. 54, n. 3, p. 89–115, 2019. Disponível em: https://pubs.ufs.ac.za/index.php/tcw/article/view/434. Acesso em: 5 oct. 2025.