Harraldm John& Mobarak< Salwa. (1998). The Third Annual Conference on Crises & Disasters Management: Organization Crisis Management Structure. جامعة عين شمس.
Chicago-viite (17. p.)Harraldm John& Mobarak< Salwa. The Third Annual Conference on Crises & Disasters Management: Organization Crisis Management Structure. القاهرة: جامعة عين شمس, 1998.
MLA-viite (9. p.)Harraldm John& Mobarak< Salwa. The Third Annual Conference on Crises & Disasters Management: Organization Crisis Management Structure. جامعة عين شمس, 1998.
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