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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रeleish, gamal e. Uses of the Input- Output Model in Development Planning in Underdeveloped Countries. cairo: the institute of national planning, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रeleish, gamal e. Uses of the Input- Output Model in Development Planning in Underdeveloped Countries. the institute of national planning, 1962.
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