Davis, B. et al. (2000). Physical Education and the Study of Sport. UK: London, Harcourt Publishers Ltd. p. 125. Table 4.6.
McGuigan, M. (2016). ‘Administration, Scoring, and Interpretation of Selected Tests’, in Haff, G. G., & Triplett, N. T. Essentials of Strength Training and Conditioning 4th Edition. USA: Human Kinetics. p. 312-313. Table 13.23.