W. Barag, F. Shtewi, and A. Tarroush, “Green Synthesis, Structural, and Optical Properties of Copper Oxide Nanoparticles using Malva Parviflora”, JOPAS, vol. 20, no. 1, pp. 25–29, Jan. 2021, doi: 10.51984/jopas.v20i1.964.