"Chemical and Electrochemical Recycling of Nickel from the Positive Electrode of Spent Nickel: Cadmium Batteries in Sulphuric Acid" (2023) Hadhramout University Journal of Natural & Applied Sciences, 16(2). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/117 (تاريخ الوصول: 25 يوليو 2026).