(3GdeOf GdLOjOI YdGeI eVjFI Ydi NQjWI eUQ (B/ s - (3hRGQI GdJYejQ hGdeLJeYGJ GdYeQs ([S.N] : (3hRGQI GdJYejQ hGdeLJeYGJ GdYeQGfjg GdLOjOI , s, 1989)
Keywords: (3eUQs; (3GdScGfs; (3GdeOfs; (3JNWjW GdeOfs; (3GdLhGfH GdGbJUGOjIs; (3GdeOf GdUfGYjIs