Putra, Heriansyah, Hideaki Yasuhara, and Naoki Kinoshita. “Optimum Condition for the Application of Enzyme-Mediated Calcite Precipitation Technique As Soil Improvement Technique”. International Journal on Advanced Science, Engineering and Information Technology 7, no. 6 (December 27, 2017): 2145–2151. Accessed June 2, 2024. https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/3425.