(3GdeONd Gdi OQGSI Yde GdcdGe (B/ s - (3MSf eMehO GdTGaYis ([S.N] : (3ecJHI hgHI , s, 1991)
Keywords: (3GdadSaI GdGSdGejIs; (3GdNhGQLs; (3GdaQb GdGSdGejIs; (3GdeYJRdIs; (3Yde GdcdGes; (3GdJhMjO(B((3JUha GSdGei(B)s