(3ebOeI aj OQGSI GdbGfhf GdOhdj GdLfGFj eY YQV hJMdjd dGMcGe eMceI fhQeHQL GdNGUI HeMGceI (B(((3cHGQ eLQej GdMQH(B)) : s (3OQGSI ebGQfI Hjf GdLQGFe GdOhdjI heG jbGHdgG aj GdbGfhf GdOGNdj (B/ s - (3GdSYOj, MejO, s ((3HZOGO (B[(3GdYQGb(B] : s (3eWHYI GdeYGQa (B971.s, 1971)
(3YfhGf GYdi UaMI GdYfhGf (B: (3eSGgeI aj JMOjO GdGSGS GdbGfhfj ddLQGFe GdGSQGFjdjI(B.s
(3jJVef EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdOhdj GdLfGFj(B.s; (3eMceI fhQeHQL (B((3CdeGfjG(B)s; (3GdLQGFe GdOhdjI(B.s