eleish, g. (1962). an introduction to the input- output model. the institute of national planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रeleish, g. An Introduction to the Input- Output Model. cairo: the institute of national planning, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रeleish, g. An Introduction to the Input- Output Model. the institute of national planning, 1962.