(3eYGgOI GdSdGe GdeUQjI GdESQGFjdjI (B: s (3OQGSI JCUjdjI hJMdjdjI Ydi VhA CMcGe GdbGfhf GdOhdj (B/ s - (3LYaQ YHO GdSdGes ((3GdbGgQI (B: s (3OGQ fgVI eUQ,s, 1980)
(3jTJed Ydi GjVGMjGJ edhfI, NQGFW(B.s
(3HHdjhLQGajG(B: (3UaMGJ (B413-423.s
Keywords: (3GdeYGgOGJs; (3eUQs; (3ESQGFjds