Nurbahirah Norddin, Suhaidi Shafie, Muhammad Idzdihar Idris, Xinzhi Liu, Ismail Lawal, Mohd Nizar Hamidon. Utilisation of Response Surface Methodology to Optimise Bandgap and Resistance of Nickel Oxide using The Sol-gel Method. Journal of Engineering Technology and Applied Physics [Internet]. 2026 Sep. 15 [cited 2026 Sep. 22];8(2):32-40. Available from: https://journals.mmupress.com/index.php/jetap/article/view/2341