Shnain SM. Study and Analysis of Nanoscale Properties of Nickel and Nickel Oxides Prepared Using Roselle extract. acopen [Internet]. 2026 Sep. 9 [cited 2026 Sep. 11];12(1):10.21070/acopen.12.2027.15889. Available from: https://acopen.umsida.ac.id/index.php/acopen/article/view/15889