Singh, Housila P., and N. Mathur. “Improved Estimation of Population Proportion Possessing Sensitive Attribute With Unknown Repeated Trials in Randomized Response Sampling”. Statistica 64, no. 3 (January 1, 2004): 537–544. Accessed April 19, 2024. https://rivista-statistica.unibo.it/article/view/1296.