(3GdehSjbjhf hGdeZfhf NdGd GdaJQI GdeXdeI ef (B656 (3g` (B- 322 (3g` , (B1258 (3e (B- 1904 (3e (B/ s - (3GdQLH , GdMGL gGTe eMeO s ((3HZOGO (B: s (3GdeQcR GdOhdj dOQGSGJ GdehSjbi GdJbdjOjI , s, 1982)
Keywords: (3GdehSjbi s -- (3JGQjN hfbO s