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<xml><bibliography><APA>Kittima Prukpousana และผู้แต่งคนอื่นๆ. (2006) Two Robust estimators of the population total for sample surveys. National Institute of Development Administration:ม.ป.ท.</APA><Chicago>Kittima Prukpousana และผู้แต่งคนอื่นๆ. 2006. Two Robust estimators of the population total for sample surveys. ม.ป.ท.:National Institute of Development Administration;</Chicago><MLA>Kittima Prukpousana และผู้แต่งคนอื่นๆ.  Two Robust estimators of the population total for sample surveys.  ม.ป.ท.:National Institute of Development Administration, 2006. Print.</MLA></bibliography></xml>
