%0 Journal Article %A L.N. Sahoo %A S.C. Senapati %A M. Dalabehera %T On Two Methods of Unbiased Estimation in Two-Phase Sampling Using Two Auxiliary Variables %J Bulletin of the Malaysian Mathematical Society %D 2004 %V 27 %N 1 %U http://geodesic.mathdoc.fr/item/BMMS_2004_27_1_a8/ %F BMMS_2004_27_1_a8