(3GdJONd ai GdOYhi GdLfGFjI (B:s (3OQGSI JMdjdI ebGQfI Hjf GdbGfhfjf GdeUQj hGdaQfSj (B/s - (3GMeO Thbi YeQ GHh NWhI (B.s ((3eUQ (B:s (3eWHYI GdeOfi (B,s, 1991)
(3jJVef bGFeI eQGLY (B237-245.s
Keywords: (3GdbGfhf GdLfGFi (B.s