OPPEL, Katharina. Living with an undivided heart: simplicity as a Christian way for the future. Stellenbosch Theological Journal, [S. l.], v. 9, n. 4, 2023. DOI: 10.17570/stj.2023.v9n4.a7. Disponível em: https://ojs.reformedjournals.co.za/index.php/stj/article/view/2635. Acesso em: 18 oct. 2025.