M. Khalifa

A guide to the common commercial freshwater fishes in the Sudan

C. Amirthalingam, M. Khalifa, 1965 .

Climate change impact on “outdoor days” over the United States

E. Eltahir, M. Khalifa, yeon-ju Choi, 2023 .

A concise guide to the National Museum of Damascus

Matḥaf Dimashq, Abû-l-Faraj ʿUsh, ʿAdnān Jundī, 1980 .