(3GdQhGFY GdSHY deSQM Jhajb GdMcje (B/ s - (3eMeO YHOGdhgGH UbQs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1990)
Keywords: (3GdGNQGL GdeSQMis; (3JGQjN hfbOs; (3GdeSQMjGJ GdYQHjIs; (3GdeLehYGJs