P. C. Kok

• Post-apartheid patterns of internal migration in South Africa
• Bevolkingsherverspreiding in die RSA
• Bevolkingsherverspreiding, 'n oorsig en evaluasie van teoretiese bydraes, strategieë en beleidsinstrumente
• Biodiversity
• Black migration to Port Elizabeth
• Black migration to the PWV complex
• Development research in South Africa
• Energy
• Environmental management
• Financial services
• Foresight
• Health