(3GdGYGbGJ GdHSjWI GdMSjI hGdHOfjI (B:s (3JYQjaGJgG deYGhfI GdhGdOjf hGdJQHhjjf ddJYQa YdjgG ai eQMdI eHcQI ef GdYeQ dJbOje GdNOeGJ GdJQHhjI GdefGSHI (B/s - (3eUWai MSf GMeOs; (3YHdI GSeGYjd GMeOs (1991)
Keywords: (3GdeLJeYs; (3GdGSQIs; (3JOQjHs; (3GdQYGjI hGdYdGLs; (3GdeYhbhfs; (3GdGWaGd GdeYhbhfs