Singh, Poonam, Rajesh Kumar Singh, and Madhulika Mishra. 2024. “Almost Unbiased Optimum Ratio-Type Estimator for Estimating Population Mean in Stratified Sampling in Presence of Non-Response”. Brazilian Journal of Biometrics 42 (1):68-77. https://doi.org/10.28951/bjb.v42i1.656.