A. Ahmed, Mohammed. “EXTRACTION OF ZINC SULFATE THAT UTILIZES IN THE MANUFACTURING OF FOOD SUPPLEMENTS BY USAGE (ZN-C) BATTERIES WASTES”. Journal of Engineering and Sustainable Development 25, no. 5 (September 1, 2021): 67–74. Accessed July 8, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/36.