Gold from selected localities.
Sudan | |
| http://www.lamancha.ca/images/lamancha/investors/technical-reports/hassai-vms-project/technical-report-hassai-vms-project-december-2009.pdf |
Jianyong Hu, Lun Yang, Hui Li, and Jianquan Liu (2011): Geology and Exploration 47(3), 505-511 |