TY - JOUR AU - B. K. Pradhan TI - Regression Type Estimators of Finite Population Variance Under Multiphase Sampling JO - Bulletin of the Malaysian Mathematical Society PY - 2010 VL - 33 IS - 2 UR - http://geodesic.mathdoc.fr/item/BMMS_2010_33_2_a15/ ID - BMMS_2010_33_2_a15 ER -