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.
Lua i Stíl Chicago (17ú heag.)Taherk 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.
Lua MLA (9ú heag.)Taherk 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.