Jothi M, and Sowmiya K. “Exploring the Characteristics of the Nickel Oxide Nanoparticles via Sol - Gel Method”. Nanoscale Reports 3, no. 3 (September 9, 2020): 37 – 42. Accessed October 22, 2025. http://nanoscalereports.com/index.php/nr/article/view/62.