Singh, R., Kumar, M. and Smarandache, F. 2008. ALMOST UNBIASED ESTIMATOR FOR ESTIMATING POPULATION MEAN USING KNOWN VALUE OF SOME POPULATION PARAMETER(S). Pakistan Journal of Statistics and Operation Research. 4, 2 (Jul. 2008), 63-76. DOI:https://doi.org/10.18187/pjsor.v4i2.50.