(3GdhUjI (B/s - (3GHf bOGeI, YHO Gddg Hf CMeOs 541-620 (3gLQjs; (3GdYSdj, Ce YHO Gddg HfJ eMQhSs; (3GdMOGO, eMehO Hf eMeOs 1374 (3gLQj(B-s ((3GdbGgQI (B- (3eUQ(B:s (3OGQ JjSjQ GdSfI,s, 1990)
Keywords: (3GdhYX hGdEQTGOs; (3GdOYhI GdESdGejIs