(3GdHQgGf ai Ydhe GdbQGf (B/ s - (3GdRQcTi (B: (3HOQGdOjf GHh YHOGddg eMeO Hf HgGOQ Hf YHOGddg GdJQci GdMUQis; (3eMeO GHh GdaVd GHQGgjes ((3HjQhJ (B: s (3GdecJHI GdYUQjI ddfTQ hGdJhRjY , s, 1972)
Keywords: (3Ydhe GdbQGfs; (3GdbQGf (B- (3GdaGXs