BORROS, G.; ER, Şebnem; SALAU, S. Computational methods for optimal stratified sampling of ECE outcomes, fees and household income in South Africa. South African Statistical Journal, [S. l.], v. 60, n. 1, p. 1–24, 2026. DOI: 10.37920/sasj.2026.60.1.1. Disponível em: https://www.journals.ac.za/index.php/sasj/article/view/7697. Acesso em: 3 apr. 2026.