SINGH, H. P.; MATHUR, N. Improved estimation of population proportion possessing sensitive attribute with unknown repeated trials in randomized response sampling. Statistica, [S. l.], v. 64, n. 3, p. 537–544, 2004. DOI: 10.6092/issn.1973-2201/1296. Disponível em: https://rivista-statistica.unibo.it/article/view/1296. Acesso em: 26 oct. 2021.