The Non-Response in the Population Ratio of Mean for Current Occasion in Sampling on Two Occasions. Journal of Statistics, [S. l.], v. 21, 2014. DOI: 10.65463/jstat.2014.94. Disponível em: https://jstat.gcu.edu.pk/index.php/jstat/article/view/94. Acesso em: 28 sep. 2026.