Taherk Hassan& Saadany, A. (1998). The Third Annual Conference on Crises & Disasters Management: Risks Assessment as a Tool for Crisis Management in Oil Industry. جامعة عين شمس.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTaherk Hassan& Saadany, Ahmed. The Third Annual Conference on Crises & Disasters Management: Risks Assessment as a Tool for Crisis Management in Oil Industry. القاهرة: جامعة عين شمس, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTaherk Hassan& Saadany, Ahmed. The Third Annual Conference on Crises & Disasters Management: Risks Assessment as a Tool for Crisis Management in Oil Industry. جامعة عين شمس, 1998.
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