Masood, S. and J. Shabbir, 2016. Generalized multi-phase regression-type estimators under the e ect of measuemnent error to estimate the population variance. Hacettepe J. Math. Stat., 45: 1297-1306. Direct Link |
Masood, S. and J. Shabbir, 2015. On some families of estimators of variance of post-stratified sample mean using two auxiliary variables. Commun. Stat. Theory Methods, 44: 2398-2415. CrossRef | Direct Link |
Masood, S. and J. Shabbir, 2011. Ratio estimators for the population variance in nested stratified sampling. Int. J. Agric. Stat. Sci., 7: 589-603.