sobhy, h. m. (1980). regional planning as a tool of strengthening the national economy. the institute of national planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रsobhy, hoda m. Regional Planning as a Tool of Strengthening the National Economy. cairo: the institute of national planning, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रsobhy, hoda m. Regional Planning as a Tool of Strengthening the National Economy. the institute of national planning, 1980.
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