• Dignum, T. Get on the Ball: A Manual of Ball Exercises to Achieve Strength, Flexibility and Core Stability. Ward Publishing. Vancouver, Canada. http://books.google.ca/books/about/Get_on_the_Ball.html?id=6PpLAAAACAAJ&redir_esc=y

  • Measure of Job Satisfaction of Rehabilitation Assistants Master of Education, Memorial University, 2010 http://collections.mun.ca/cdm4/document.php?CISOROOT=/theses5&CISOPTR=18447