Daira Radouane, Zerouali Madiha, R. Sabrina, Boudjema Bouzid, and A. Harrouz, “PHYSICAL properties of CuO Deposited by Ultrasonic Spray by Flow Rates 5ml/h and 10 ml/h for Application in Renewable Energy”, AJRESD, vol. 5, no. 02, pp. 136-143, Dec. 2023.