“The Effect of H2SO4 Concentration on the Yield and Purity of Zinc Sulfate in the Synthesis of Zinc Sulfate from Zinc Waste” (2026) Jurnal Serambi Engineering, 11(1). Available at: https://jse.serambimekkah.id/index.php/jse/article/view/1487 (Accessed: 26 April 2026).