Nainggolan, Biduan Manahan, and Alkhafi Maas Siregar. “PENGARUH PENAMBAHAN CANGKANG KEMIRI TERHADAP KUAT TEKAN DAN RETAKAN BETON PASCA BAKAR”. EINSTEIN (e-Journal) 3, no. 1 (February 1, 2015). Accessed October 12, 2025. https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/5445.