Kok and M.O. and Omar-Fauzee and M.S. and Rosli and M.H., Relationship between Level of Physical Activity and Exercise Imagery among Klang Valley Citizens. journal = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology. January 2010, vol. 37(1). 24 - 28 [viewed 13 April 2021]. Available from: https://publications.waset.org/pdf/721.