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Contact Researcher
| Surname | Researcher | Contact Researcher | |
|---|---|---|---|
 | VAN SCHALKWYK | Hendrik Louw | Contact Researcher |
| VAN SCHALKWYK | Johann Ahlers | Contact Researcher |
| VAN SCHALKWYK | Ockert Malan | Contact Researcher |
| VAN SCHALKWYK | Willieta de Swardt | Contact Researcher |