(3GSJQGJjLjI GdGOH GdUgjhfi dGQgGH GdYQH (B/ s - (3GHQGgje GdHMQGhis; (3eMehO UejOIs ([S.N] : (3OGQ GdgdGd ddWHGYI hGdfTQ , s, 1988)
Keywords: (3GdUgjhfjIs; (3GdGOH GdYHQis; (3GdbUU GdYHQjI GdbUjQIs; (3GdSjGSI ai GdGOHs