Le, T. N., & Verma, V. K. (1997). An analysis of sample designs and sampling errors of the demographic and health surveys. Macro International.
Lua i Stíl Chicago (17ú heag.)Le, Thanh N., agus Vijay K. Verma. An Analysis of Sample Designs and Sampling Errors of the Demographic and Health Surveys. Calverton, Md.: Macro International, 1997.
Lua MLA (8ú heag.)Le, Thanh N., agus Vijay K. Verma. An Analysis of Sample Designs and Sampling Errors of the Demographic and Health Surveys. Macro International, 1997.
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