Ashad, Hanafi, Amrinsyah Nasution, Iswandi Imran, and Saptahari Soegiri. “Degradasi Kekuatan Beton Akibat Intrusi Mikroorganisme”. Jurnal Teknik Sipil 13, no. 3 (September 1, 2010): 151-158. Accessed October 11, 2025. https://journals.itb.ac.id/index.php/jts/article/view/2696.