“The Effect of Reusing Copper Slag in the Blasting Process on the Surface Roughness of Ship Hull Plates”. Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan (March 31, 2026): 109–113. Accessed August 7, 2026. https://journal-598.unhas.ac.id/index.php/zonalaut/article/view/48951.