Maddu, Akhiruddin, Zetria Zikri, and Irzaman Irzaman. “Structure and Morphology of ZnO Nanoparticles Prepared by Sonochemical Method”. TIME in Physics 1, no. 2 (July 10, 2023): 51–58. Accessed May 18, 2024. http://ejournal.universitasmandiri.ac.id/index.php/timeinphys/article/view/8.