Mohd Safee M. K. and  Wan Abas W. A. B and  Ibrahim F. and  Abu Osman N. A. and  Abdul Malik N. A.,  Electromyography Activity of the Rectus Femoris and Biceps Femoris Muscles during Prostration and Squat Exercise.   journal   = {International Journal of Bioengineering and Life Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 96(12). 860 - 863
    [viewed 19 October 2019]. Available from: https://publications.waset.org/pdf/10000391.