(3ChfjL Cha cGjQh (B((3ChfjL(B. (3CdjcSGfjGf(B)s 50 + (3YGeG ef MjGI UGFZs - (3GdEeGe, eMeO QaYJs ((3GdbGgQIs [(3O(B. (3f(B.]s, 2001)
(3GdfU eJGM HdZJjf GdYQHjI h GdEfLdjRjIs
4 13
Keywords: (3ChfjL GdjcSGfjGfs; (3GdQLGds -- (3JQGLes