1. Principally on sheet metal forming defects as described in the 11th Biennial Congress of the International Deep Drawing Research Group (IDDRG);Ghosh,1981
2. Some aspects of the design and classification of drill bits;Jackson;Prod. Eng.,1975
3. Some aspects of the design and classification of drill bits;Jackson;Prod. Eng.,1975
4. A history of the development of drill bits and drilling techniques in nineteenth century Britain;Jackson,1983
5. Hand-cranking in Egyptian antiquity;Sleeswijk;Hist. Tech.,1981