FICK, Rikus. Die Afrikaanse gereformeerde kerke in Suid-Afrika en ekologie. Stellenbosch Theological Journal, [S. l.], v. 6, n. 3, p. 277–300, 2021. DOI: 10.17570/stj.2020.v6n3.a9. Disponível em: https://ojs.reformedjournals.co.za/index.php/stj/article/view/2128. Acesso em: 18 oct. 2025.