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| Voice Stress Analysts SA | Midrand | Lie detection, employment screening | |
| VSA - National Voice Stress & Polygraph Network | Pretoria | Voice Stress Analysis/Polygraph |
List your company
| Voice Stress Analysts SA | Midrand | Lie detection, employment screening | |
| VSA - National Voice Stress & Polygraph Network | Pretoria | Voice Stress Analysis/Polygraph |