Close  
Figure 1: Bar graph representation of the results (a) bar graph analysis for questions 1, 2 and 3, (b) bar graph analysis for questions 4, 5 and 6, (c) bar graph analysis for questions 7, 8 and 9, (d) bar graph analysis for questions 10, 11 and 12, (e) bar graph analysis for questions 13, 14 and 15, (f) bar graph analysis for questions 16, 17 and 18, (g) bar graph analysis for questions 19 and 20 
