PANJAITAN, Nurhidayah; HARAHAP, Mara Bangun. PENGARUH PENAMBAHAN ABU AMPAS TEBU DAN TEMPURUNG KELAPA TERHADAP KUAT TEKAN BETON. EINSTEIN (e-Journal), [S. l.], v. 7, n. 1, 2019. DOI: 10.24114/einstein.v7i1.12491. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/12491. Acesso em: 12 oct. 2025.