E. J. Vishaka, M. P. Dharshini, V. Shally, and S. G. Jayam, “Structural and Optical Properties of Pure NiO Nanoparticles and NiO-Mn2O3, NiO-CdO, NiO-Pb2O3, NiO-ZnO Nanocomposites”, JJP, vol. 14, no. 5, Apr. 2025.