Ahmed , M.S., 2003.General Chain estimators under multi-phase sampling,J. Applied Statist. Sci. 12 243 -250
Ahmad , Z.,Hanif , M.,Ahmad , M., 2009.Generalized Regression Cum-Ratio Estimators for Two-Phase Sampling Using Multi-Auxiliary Variables, 25 93 -106
Ahmad , Z.,Hanif , M.,Ahmad , M., 2010a.Generalized Multi-Phase Multivariate Ratio Estimators for Partial Information Case Using Multi-Auxiliary Variables,Communication of the Korean Statistical Society 17 625 -637
Ahmad , Z.,Hanif , M., 2010b.Generalized multivariate regression estimators for partial information case,World Applied Science Journal 10 370 -399
Ahmad , Z.,Maqsood , I.,Hanif , M.,App, 2013.Generalized estimator of population mean for two phase sampling using multi-auxiliary variables in the presence of nonresponse at first phase for no information case,J. Math. Sci. 1 238 -256
Ahmad , Z.,Afzal , M.,Hanif , M., 2014.A general class of mean estimators using mixture of auxiliary variables for two-phase sampling in the presence of nonresponse at second phase for no information case,Pak. J. Statist. 30 291 -318
Bahl , S.,Tuteja , R.K., 1991.Ratio and product type exponential estimators,Information and Optimization Sciences 12 159 -163
Butt , N.S.,Kamal , S.,Shahbaz , M.Q., 2011.Multivariate estimators for two phase sampling,World Applied Sciences Journal 13 2216 -2223
Chand , L., 1975.Some ratio type estimators based on two or more auxiliary variables,Unpublished Ph.D. Thesis -
Cochran , W.G., 1940.The estimation of the yields of cereal experiments by sampling for the ratio of grain to total produce,J. Agricultural Sc. 30 262 -275
Cochran , W.G., 1977.,Sampling Techniques -
Hanif , M.,Ahmad , Z.,Ahmad , M., 2009.Generalized Multivariate Ratio Estimator using Multi-Auxiliary Variables for Multi-Phase Sampling, 25 615 -629
John , S., 1969.On multivariate ratio and product estimators,Biometrika 56 533 -536
Ngesa , O.,Orwa , G.O.,Otieno , R.O.,Murray , H.M., 2012.Multivariate ratio estimator of the population total under stratified random sampling,Open Journal of Statistics 2 300 -304
Olkin , I., 1958.Multivariate ratio estimation for finite populations,Biometrika 45 154 -165
Sanaullah , A.,Khan,Ali , H.A.,Singh , R., 2012.Improved ratio type estimators in survey sampling,Journal of Reliability and Statistical Studies 5 119 -132
Sanaullah , A., 2014.Generalized exponential estimators for population mean under stratified sampling in the presence of non-response,Unpublished Ph.D. thesis, National College of Business Administration and Economics -
Samiuddin , M.,Hanif , M., 2007.Estimation of population mean in single and two-phase sampling with or without additional information,Pak. J. Statist. 23 99 -118
Singh , H.P.,Solanki , S.R., 2014.An Efficient Class of estimators for the population mean using auxiliary information,Theory and Methods 42 145 -163
Singh , H.P.,Vishwakarma , G.K., 2007.Modified exponential ratio and product estimators for finite population mean in two-phase sampling,Austrian Journal of Statistics 36 217 -225
Singh , G.N.,Majhi , D., 2014.Some Chain-Type Exponential Estimators of Population Mean in Two-Phase Sampling, 15 221 -230
Srivastava , S.K.,Khare , B.B.,Srivastava , S.R., 1990.A generalized chain ratio estimator for mean of finite population,J. Ind. Soc. Agri 42 108 -117
Tripathi , T.P., 1989.Optimum estimation of mean vector for dynamic population,Invited paper in the Proceeding of International Symposium on Optimization and Statistics -
Tripathi , T.P.,Khattree , R., 1989.Simultaneous estimation of several means using multivariate auxiliary information,Tech. Report No. 13/89 -