(3GdJbQjH dabg GHf bje GdLhRjI (B691 - 751 (3g GdbSe GdKGfi GdWgGQI GQcGf GdGSdGe GdLgGO (B/ s - (3HcQ Hf YHOGddg GHhRjOs ([S.N] : (3dG jhLO , s, 1980)
Keywords: (3GdUdGIs; (3Gdabg GdGSdGeis; (3GdYHGOGJs; (3GdWgGQIs; (3GHf bje GdLhRjIs