(3hbaGJ JOHQjI eY CSeGA Gddg GdMSfi (B/s - (3GdSHjd , fLdGAs ([(3O(B.(3e(B.] :s [(3O(B.(3f(B.] (3,s, 1991)
(3edReI eUhQI NGUI HOGQ GdJhMjO dJMajX GdbQBf GdcQje (B.s
(3HHdjhLQGajI (B: (3UaMI (B156.s
Keywords: (3GdUaGJ (B((3Yde GdcdGe(B)s; (3EdgjGJs; (3CSeGA Gddg GdMSfis; (3CSeGA Gddg hUaGJgs