(3GdZPGA dSHYjf edjhfG (B: (3JMOi GdRQGYI GdeUQjI YGe (B2000 (3e (B/ s - (3eMeO GdSjO YHOGdSdGes ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1990)
Keywords: (3eUQs; (3GdRQGYIs; (3JShjbs; (3GdJfejI GdRQGYjIs; (3GbJUGOjGJs; (3GdJNWjW GdRQGYis; (3GdGZPjIs; (3GdGfJGL GdRQGYis; (3GdGFJeGf GdRQGYis