(3JMaI GdNhGU ai Md UjO HfOb GdQUGU(B, (3ai(B: (3cJGH eMeO HjQe GdNGeS(B, (3HjdjhZQGajI JMdjdI(B((3ef U (B227:254 ) / s - (3eMeO HjQe GdNGeSs ([S.N] : (3GdeDSSI GdhWfjI ddJQLeI hGdJMbjb , s, 1989)
Keywords: (3GdGOH GdYQHis; (3JhfSs; (3JGQjN hfbOs