التنمية الاقتصادية والاجتماعية | ||
| The Egyptian Statistical Journal | ||
| Article 9, Volume 14, Issue 2, December 1970, Pages 1-20 PDF (13.84 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/esju.1970.430322 | ||
| Author | ||
| نزيه أحمد ضيف | ||
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