Mishra, R. ., R. . Singh, and Y. S. Raghav. “On Combining Ratio and Product Type Estimators For Estimation of Finite Population Mean In Adaptive Cluster Sampling Design”. Brazilian Journal of Biometrics, vol. 42, no. 4, Oct. 2024, pp. 412-20, doi:10.28951/bjb.v42i4.725.