Soleman, Sadli, Mufti Amir Sultan, Kusnadi, and Nurmaiyasa Marsaoly. “THE EFFECT OF USING FLY ASH AS A CEMENT SUBSTITUTE ON THE QUALITY OF NICKEL SLAG-BASED PAVING BLOCKS”. International Journal of Research -GRANTHAALAYAH 12, no. 12 (January 15, 2025): 73–79. Accessed October 31, 2025. https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/5875.