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Hartono, E., S. R. ZA, and A. D. Hemeto. “Penggunaan Campuran Abu Sampah Organik Dan Limbah Karbit Sebagai Bahan Pengganti Semen Pada Mortar”. Semesta Teknika, vol. 12, no. 1, May 2009, pp. 86-91, doi:10.18196/st.v12i1.757.