Kurniawan, Achendri M., and Devita Sulistiana. “PENGARUH PENAMBAHAN ABU CANGKANG BEKICOT PADA SEMEN RAMAH LINGKUNGAN TERHADAP KUAT TEKAN MORTAR”. Jurnal Qua Teknika 8, no. 2 (September 29, 2018): 63–69. Accessed October 9, 2026. https://ejournal.unisbablitar.ac.id/index.php/qua/article/view/502.