Sheikheldeen , B. A., Elkheir, . M. S., Muhab, S. H. and Mohmmed, A. . (2022) “Utilization of Acacia seyal(Talih) bark powder Extract for Manufacture of Upper leather as Alternative Retanning Agent”, Journal of African Leather and Leather Products Advances, 5(1). doi: 10.15677/jallpa.2019.v5i1.19.