1. On sampling with and without replacement.;Basu;Sankhya,1958
2. A note on inverse sampling with equal probabilities,;Chikkagoudar;Sankhya, Ser. A,1966
3. “On pps sampling with and without replacement.”;Chikkagoudar;Austral. J. Statist.,1967
4. “Some remarks on sampling with replacement.”;Raj;Ann. Math. Statist.,1958
5. Three stage sampling with varying probabilities of selection.;Ecimovic;J. Ind. Soc. Agri. Statist.,1956