(3bGehS GdYdhe GdeUhQ (B/s (3eY eSQOjf EfcdjRj (B- (3YQHj hYQHj (B- (3GfcdjRjs - (3ZhOeGf, BQKQs; (3GdNWjH, CMeO Tajbs ((3HjQhJ (B:s (3ecJHI dHfGf,s, 1981)
(3jTJed Ydi eSQOjf EfLdjRj(B-(3YQHj, YQHj(B-(3EfLdjRj(B.s
Keywords: (3GdYdhes -- (3eYGLes