(3GdehShYI GdafjI ddJLgjRGJ GdafObjI GdJWHjbjI ai GdeTQhYGJ GdSjGMjI hGdGMdGd hGdJWhjQ hGdJLOjO (B/ s - (3fUQ aQMGJs ((3GdbGgQI (B: s (3ecJHI GdGfLdhGdeUQjI , s, 1993)
Keywords: (3GdafGObs; (3GdSjGMIs; (3GdeHGfis; (3GdGKGKs