Selma Abd Elrahman Hussein, Zeinab Abdallah Elhassan , Gurashi Abdallah Gasmelseed. “Towards Sustainable Tannery: Advanced Recycling And Reuse Of Tannery Wastes”. Migration Letters, vol. 20, no. S9, Nov. 2023, pp. 1834-4, https://migrationletters.com/index.php/ml/article/view/9992.