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CPS1071 Ibarra Aaron R. Poliquit et al.
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4. Lavallee, P. and Hidiroglou, M. (1988). On the Stratification of Skewed
Populations. Survey Methodology. 14(1), p. 33-34.
5. Baillargeon, S. and L.P. Rivest (2014). Univariate Stratification for Survey
Population.https://cran.r-
project.org/web/packages/stratification/stratification.pdf
6. Lohr, S. L., (2010). Sampling: Design and Analytics, Second Edition.
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