(3GdOaGY GdGLJeGYj GdLOjO (B: s (3SjGSjI, LfGFjI, EfSGfjI (B/ s - (3BfSd, eGQc s; (3YdGe, MSf s ((3GdEScfOQjI, eUQ (B:s (3efTCI GdeYGQa, s, 1991)
(3WHYI YQHjI NGUI HGdJYOjdGJ GdgGeI GdhGQOI HGdWHYI GdaQfSjI GdKGdKI hebOeI JMdjdjI(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B. s
Keywords: (3ecGaMI GdLQjeI s; (3GdLQjeI hGdeLQehf s