On Some Properties of the Ratio Estimators Under Size Stratification and Estimation Inuni - Stage Successive Sampling

Optimum Allocation in Stratified Samples for a Multivariate Survey

Two New Estimators for a Normal Coefficient of Variation based on Ranked Set Sampling

An Admissible Estimator for The Variance of A Finite Population

On the Estimation of Error by Simple Random Sample Formula in Complex Sample Designs

An Asymptotic Variance Formula for Sampling Without Replacement with Unequal Probabilities

Valid estimation of the distribution function using dual-rank ranked set sampling: Missing data approach

Precision of Design Effect in Cluster Sampling

Calibration Estimators of the Population Parameters Using Stratified Random Sample

Covariance Matrix Estimation in Complex Surveys