1. Altman, D. G. (1991). Practical Statistics for Medical Research. London: Chapman & Hall.
2. Hughes, C. & Clarke, S. (1995). Surface effect on patterns of play of elite tennis players. In: T. Reilly, M. D. Hughes, & A. Lees (eds.). Science and Racket Sports. London: E&FN Spon.
3. Hughes, M. & Moore, P. (1998). Movement analysis of elite level male “serve and volley” tennis players. In: Hughes M, Maynard I, Lees A, Reilly T. (Eds.). Science and Racket Sports II. London: Routledge.
4. Lee, K.T., Xie, W. & Teh, K.C. (2005). Notational analysis of international badminton competitions. In: W. Quing (Ed.). Proceedings 23 International Symposium on Biomechanics in Sports. Beijing: China.
5. O’Donoghue, P. (2009). Research methods for sports performance analysis, London: Routledge.