Ijeh R, Asida SO, Ezema FI, Asarhasa P. Effect of Allium Cepa on the Properties of Nickel Doped Zinc Oxide Nanopyramids: Effect of allium cepa on the properties of nickel doped zinc oxide nanopyramids. NJP. 2023;32(3):33-38. Accessed February 24, 2026. https://njp.nipngr.org/index.php/njp/article/view/115