Population mean estimator corresponding to Horvitz - Thompson's estimator for multi-characteristics using randomised response technique. - Inderjit Singh Grewal; M. L. Bansal; S. S. Sidhu (Model. Assist. Stat. Appl., 2006)

Estimator of population total using RAO, Hartley and Cochran's scheme using optional randomized response technique in multi-character surveys. - S. S. Sidhu; M. L. Bansal (Model. Assist. Stat. Appl., 2008)

On estimation of totals of multi-sensitive-characteristics using forced quantitative randomized responses. - S. S. Sidhu; Inderjit Singh Grewal; M. Javed (Model. Assist. Stat. Appl., 2014)