(3GdMGShH (B: (3GdeYOGJ (B- (3GdHQeLjGJs - (3GdYbjdj(B. (3UGdM GQTjOs; (3GdHdTI(B. (3NGdO Gejfs; (3GdeOfj(B. (3Ydj eMehOs ((3OGQ GdTQhb ddfTQ hGdJhRjYs (3YeGfs, 1990)
Keywords: (3GdMGShHs; (3GdMGShH(B-(3GdHQeLjGJs; (3GdMGSHGJ GdGdcJQhfjIs