mahmoud, m. w. (1965). note on statistical methods. the institute of national planning.
Tohutoru Kātū Chicago (17th ed.)mahmoud, moharram w. Note on Statistical Methods. cairo: the institute of national planning, 1965.
Tohutoro MLA (9th ed.)mahmoud, moharram w. Note on Statistical Methods. the institute of national planning, 1965.
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