Samir M. Zaid, Oussama A. EL-Badry, Adel M. Akarish, Mahmoud A. Mohamed. Assessment of the environmental aspects and economic importance of the Upper Cretaceous Duwi black shales in Aswan Governorate, Egypt. J. Adv. Zool. [Internet]. 2022 Dec. 10 [cited 2024 Jul. 22];43(S1):486-94. Available from: https://jazindia.com/index.php/jaz/article/view/4251