SABAT, Ajit Kumar; SAHOO, R. K.; SAHOO, L. N. A New System of Inclusion Probability Proportional to Size Sampling Schemes of Two Units . Nepalese Journal of Statistics, [S. l.], v. 8, n. 1, p. 33–46, 2024. DOI: 10.3126/njs.v8i1.73163. Disponível em: https://nepjol.info/index.php/NJS/article/view/73163. Acesso em: 18 jan. 2025.