ZIELIŃSKI, W. A CONFIDENCE INTERVAL FOR PROPORTION IN FINITE POPULATION DIVIDED INTO TWO STRATA: A NUMERICAL STUDY. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 16, n. 2, p. 152–158, 2015. Disponível em: https://qme.sggw.edu.pl/article/view/3777. Acesso em: 15 maj. 2024.