(3CYeGd eDJeQ GdCee GdeJMOI ddJLGQI hGdJfejI GdOhQI GdQGHYI GdeLdO GdGhd(B/s - (3GdGee GdeJMOIs ((3fjhjhQc(B:s (3GdGee GdeJMOI(B,s, 1997)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdGfJGLs; (3JfejI OhdjIs; (3JLGQIs; (3eaGhVGJ JLGQjIs; (3eLJeY GbJUGOjs; (3GdGTJQGcjIs