Chaudhuri, ArijitAdhikary, Arun KumarDihidar, Shankar2013-08-072013-08-072000Pakistan Journal of Statistics, v 16, no 3, p 217-227http://hdl.handle.net/10263/5549enSample surveySimulation studyUnbiased variance estimationThree-stage samplingOn alternatives variance estimators in three-stage sampling