1. Performance in gripping and turning: a study in hand/handle effectiveness;Pheasant;Applied Ergonomics,1975
2. Handles for manual materials handling;Drury;Applied Ergonomics,1980
3. Peterson’s Stress concentration factors;Pilkey,1997
4. BS EN 50144–1:1996, Safety of hand-held electric motor operated tools; Part 1 General Requirements.
5. Body space-anthropometry, ergonomics and design;Pheasant;Taylor and Francis, Chapter,1986