OPTIMUM STRATIFICATION FOR TWO STUDY VARIABLES FOR ALLOCATION PROPORTIONAL TO AUXILIARY VARIABLE STRATUM TOTAL. Advances and Applications in Statistics , [S. l.], v. 83, p. 83–106, 2025. DOI: 10.17654/0972361722087. Disponível em: https://pphmjopenaccess.com/aas/article/view/621. Acesso em: 5 jan. 2026.