(3ehVhYGJ adSajI ehSYI dWdGH GdUa GdKGdK KGfhj (B( (3aQY GdadSaI (B) / s - (3GdaQN, MSjfs ((3WQGHdS (B((3dHfGf(B) :s (3OGQ LQhS HhS,s, 1986)
Keywords: (3GdadSaIs; (3OQGSI h JOQjSs