Hindersah, R., Z. Handyman, F. N. Indriani, P. Suryatmana, and N. Nurlaeny. “Azotobacter Population, Soil Nitrogen and Groundnut Growth in Mercury-Contaminated Tailing Inoculated With Azotobacter”. Journal of Degraded and Mining Lands Management, vol. 5, no. 3, Apr. 2018, pp. 1269-74, doi:10.15243/jdmlm.2018.053.1269.