توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Karamalla-Gaiballa, N., & El-Kafafi, S. (2021, December). The Impact of Conflicts on Natural Resources – The Case of Sudanese Darfur Region. Polish Political Science Yearbook.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Karamalla-Gaiballa, Nagmeldin, و Siham El-Kafafi. "The Impact of Conflicts on Natural Resources – The Case of Sudanese Darfur Region." Polish Political Science Yearbook Dec. 2021.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Karamalla-Gaiballa, Nagmeldin, و Siham El-Kafafi. "The Impact of Conflicts on Natural Resources – The Case of Sudanese Darfur Region." Polish Political Science Yearbook, Dec. 2021.