(3OQGSGJ hHMhK aj bVGjG Mbhb GdEfSGf hMQjGJg ef efXhQ ESdGej (B/s (3LYaQ YHO GdSdGe(B.s - (3YHO GdSdGe, LYaQs ([(3ecGf GdfTQ ZjQ eMOO(B] : s [(3GdfGTQ ZjQ eMOO(B](3,s, 1900)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdESdGe hMbhb GdEfSGfs; (3GdESdGe hGdMQjIs