(3TQM GdfUhU GdYQHjI (B:s (3dGJaGbjI GdLGJ h efXeI GdJLGQI GdYGdejI (B/s - (3YHO GdaJGM eQGOs ([(3ecGf GdfTQ ZjQ eMOO(B] "s [(3GdfGTQ ZjQ eMOO(B] ,s, 1997)
(3jTJed Ydi EjVGMjGJ, LOGhd, eKjdjGJ (B.s
. 609-612 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GJaGbjI GdLGJ s