الفهرس 
مقدمة البحثيوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
Mobility data are usualy obtained from questions that compare current status with status at a prior data, those persons who have made a specified type of change in their status being classified as movers these data yield a classification of the population by mobility status.
In such classification, only those persons who residences at the beginning of the period are counted as movers.