Sulaiman, N. ., Faiqoh, E. ., Irna Tawaddud, B. ., & Maulidya Muntasir, K. . (2024). Utilization of Printing Plate Waste As Applied Chemistry Learning Media For Using Engraving and Knocking Techniques. KnE Engineering, 6(1). https://doi.org/10.18502/keg.v6i1.15449