(3GdMQa hGdUfGYGJ ai eUQ GdGSdGejg (B/ s - (3GdSjO Wg GdSjO GHh SOjQIs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1991)
Keywords: (3eUQs; (3JGQjNs; (3GdUfGYIs; (3GdUfGYGJ GdjOhjIs; (3GbJUGOjGJs; (3GdeOf GdUfGYjIs; (3GdUfGYI hGdOhdIs