(3aSdLI hJTQjM hehQahdhLj fNdI GdJeQ (B/ s - (3GdfYjej, LHGQ MSfs; (3LYaQ, GdGejQ YHGSs ((3GdHUQI (B[(3GdYQGb(B] : s (3eWHYI LGeYI GdHUQI, s, 1980)
(3SfI GdGjOGY (B: 1980s
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B259-265s
Keywords: (3GdfNjds -- (3aSjhdhLjGs