Zainul, R., Trafino, R., Krismadinata, Lapisa, R., Azhari, P., Lubis, A. P., & Muhardi. (2023). Influence of ZnO on Antibacterial Properties of Portland Cement. International Journal on Advanced Science, Engineering and Information Technology, 13(6), 2045–2051. https://doi.org/10.18517/ijaseit.13.6.19262