National Productivity Institute.
Productivity of the footwear industry in South Africa- Productivity of the furniture industry in South Africa, 1975
- Productivity of the iron foundry industry in South Africa, 1973
- Productivity of the knitting industry in South Africa
- Productivity of the motor repair industry in South Africa, 1973-1974
- Productivity of the sawmilling industry in South Africa
- Productivity study of the pharmaceutical manufacturing industry in South Africa
- Profitability, cost performance and sewing room productivity