(3GdMde (B: s (3CQOfjI JMde HfUQ aj adSWjf (B: (3bUI ddCWaGd (B/ s - (3GdLQGLQI, YjSis ((3YeGf (B:s (3OGQ EHf QTO ddfTQ h GdJhRjY,s, 1985)
Keywords: (3COH GdCWaGds; (3GdbUU GdYQHjIs