(3GfJbGd GdGdJRGe Hjf GdGMjGA aj Gdabg GdGSdGej GdebGQf hGdbGfhf (B/ s - (3GdSGeQGFj, eMeO YHGS, s ((3HZOGO (B[(3GdYQGb(B] : s (3eWHYI LGeYI, (B399 (3g`(B. = 1979.s, 1979)
(3SGYOJ LGeYI HZOGO Ydi WHYg(B.s
(3GdYfhGf Ydi GdZdGa (B: (3GfJbGd GdGdJRGe Hjf GdGMjGA (B: (3OQGSI ebGQfI(B.s
(3jJVef EQLGYGJ HHdjhLQGajI (B: (3UaMI (B487-505.s
Keywords: (3GdGdJRGeGJ (B((3abg GSdGej(B).s; (3GdGdJRGeGJs -- (3bhGfjf hJTQjYGJs -- (3GdHdGO GdYQHjI(B.s