(3GdVQGFH GdYbGQjI h GdeMdjI (B/s - (3eMeO YHOGdefYe GdLeGds ((3GdGScfOQjI (B:s (3GdecJH GdeUQi GdMOjK (B,s, 1970)
(3jTJed Ydi EjVGMjGJ, LOGhd, eKjdjGJ (B.s
. 744-749 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdEfLdjRjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GdVQGFHs; (3GdVQGFH GdeMdjI s