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2. S. Muraski Johnson, Misunderstanding fires GD&T debate, Mach. Des. April 18 (1994) 69–72
3. GD&T challenges the fast draw;Krulikowski;Manuf. Eng.,1994
4. A. Krulikowski, Geometric Dimensioning and Tolerancing, a Self-Study Workbook, Effective Training Incorporated, 1994.
5. A. Krulikowski, Tolerance Stacks, a Self Study Course, Effective Training Incorporated, Westland, MI, 1992.