(3GddjHQGdjg GdeSJHOg (B: s (3OQGSI aj GdBKGQ GdELJeGYjI h GdSjGSjI (B/ s - (3Rcj, QeRjs ((3GdbGgQI (B:s (3SjfG ddfTQ,s, 1993)
Keywords: (3GddjHQGdjIs; (3GdePGgH GdSjGSjIs