(3GHMGK GdjQehc (B: s (3SdSdI GdGOGH hGddZhjGJ eLdI eMceI fUa SfhjI (B/ s - (3eMeO Gejf YhGOs ((3GdGQOf (B: s (3LGeYI GdjQehc , s, 1987)
Keywords: (3GddZI GdYQHjIs; (3abg GddZI GdYQHjIs; (3JGQjN hfbOs