(3EYdGe GdfSGA aj YGdej GdYQH hGdESdGe (B: s (3GdLRA GdKGfj (B/ s ((3HjQhJ (B: s (3eDSSI GdQSGdI , s, 1982)
Keywords: (3JQGLe; fSGA; CYdGes