Ihsani, Z. M., and H. Putra. “The Utilization of Milk As a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack-Healing in Concrete”. Civil Engineering Dimension, vol. 23, no. 1, Apr. 2021, pp. 54-61, doi:10.9744/ced.23.1.54-61.