An alternative class of estimators in double sampling. Senapati, S.C.; Sahoo, L.N. — 2006 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
On two methods of unbiased estimation in two-phase sampling using two auxiliary variables. Sahoo, L.N.; Senapati, S.C.; Dalabehera, M. — 2004 Bulletin of the Malaysian Mathematical Sciences Society. Second Series