(3eGGdGOH (B: (3eGGdcJGHI (B: (3deGPG fcJH (B: (3def fcJH (B: (3ehba GdcGJH ai GdYUQ GdMOjK (B/ s - (3eMeO Zfjei gdGds; (3LGf hd SGQfRs ([S.N] : (3fgVI eUQ ddWHGYI hGdfTQ hGdJhRjY , s, 1990)
Keywords: (3GdfbOs; (3adSaIs; (3GdGOHs; (3GdhUa GdGOHis; (3JGQjN hfbOs