Growth and Morphological Evolution of Porous Anodic Alumina via Two-Step Anodization in 0.3 M Oxalic Acid . jshd [Internet]. 2026 Jul. 16 [cited 2026 Jul. 16];2(3):140-8. Available from: https://jshd.com.ly/index.php/jshd/article/view/248