(3GdKGHJ hGdeJZjQ OQGSGJ ai GdeSQM hGdJQGK GdTYHi (B/ s - (3MSf YWjIs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1990)
Keywords: (3JhfSs; (3GdJQGKs; (3GdeSQMs; (3GdeSQMjGJs; (3GdJQGK GdYQHis; (3Gdafhf GdeSQMjIs; (3GdGOH GdTYHis; (3GdKbGaI GdLeGgjQjIs; (3GdahdcdhQ GdeUQis; (3GdeSQMjGJ GdTYHjIs