Syahril, and Lintang D.A. “Kajian Pengaruh Penambahan Vermikulit Terhadap Beton Segar”. Potensi : Jurnal Sipil Politeknik 23, no. 1 (April 30, 2021): 51-58. Accessed October 27, 2021. https://jurnal.polban.ac.id/ojs-3.1.2/potensi/article/view/2434.