(3QFGSI GdOhdI aj GdGJMGO GdShjSQj (B/s - (3aQfGS YHO GdHGSW GdHfGs ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3ESe GdfGTQ ZjQ eMOO,s, 1986)
. 109-99(3HHdjhLQGajG(B: (3UaMGJ(B.s
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Keywords: (3ShjSQGs