“The Effect of H2SO4 Concentration on the Yield and Purity of Zinc Sulfate in the Synthesis of Zinc Sulfate from Zinc Waste”, jse, vol. 11, no. 1, Jan. 2026, Accessed: Apr. 26, 2026. [Online]. Available: https://jse.serambimekkah.id/index.php/jse/article/view/1487