ISTIQOMAH, N. “PENGARUH VARIASI RASIO AGREGAT KASAR TERHADAP KUAT TEKAN DAN POROSITAS BETON NON PASIR”. Jurnal Tugas Akhir Teknik Sipil, Vol. 1, no. 2, July 2019, pp. 79 -83, https://ojs.poltekba.ac.id/ojs/index.php/jutateks/article/view/68.