(3GfgGA YbO GdYed ZjQ eMOO GdeOI aj GdbGfhf GdchjJj (B: s (3OQGSI ebGQfI (B/ s - (3GdjYbhH, HOQ LGSe, s ((3GdchjJ (B: s (3eWGHY GdQSGdI, (B404 (3g`(B. = 1984.s, 1984)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B191-199.s
Keywords: (3GdYed hGdYeGds -- (3bhGfjf hJTQjYGJs -- (3GdchjJ(B.s; (3GdYed hGdYeGds -- (3bhGfjf hJTQjYGJ(B.s; (3GdehXahfs -- (3bhGfjf hJTQjYGJs -- (3GdchjJ(B.s