(3GdehXahf hGdMcheI Hjf GdNVhY hGdehGLgI (B:s ((3OQGSI JMdjdjI hJCUjdjI aj GdbGfhf GdebGQf(B) /s - (3YHO GdefYe eMahXs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1986)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdEfLdjRjIs
Keywords: (3eHOC WGYI GdQDSGA s; (3GdbGfhf GdEOGQjs