(3Jbjje GdeTGQjY (B: s (3JMdjd GdYGFOGJ h GdJcGdja (B/ s - (3fUjQ, fYjes ((3YeGf (B:s (3GdefXeI GdYQHjI ddYdhe GdCOGQjI,s, 1986)
Keywords: (3GdEOGQIs; (3JbfjGJ GdEOGQIs; (3EOGQI GdeTGQjY GdEfTGFjIs