(en) Akshoy Paul et Pijush Roy, Sanchayan Mukherjee, Mechanical Sciences: Engineering Mechanics and Strength of Materials, New Delhi, Prentice Hall of India, , 596p. (ISBN978-81-203-2611-8, OCLC166755089, lire en ligne), p.215
(en) Akshoy Paul et Pijush Roy, Sanchayan Mukherjee, Mechanical Sciences: Engineering Mechanics and Strength of Materials, New Delhi, Prentice Hall of India, , 596p. (ISBN978-81-203-2611-8, OCLC166755089, lire en ligne), p.215