(3Sff SYjO Hf efUhQ (B/s - (3GdNQGSGfj, SYjO Hf efUhQ Hf TYHI,s (3J(B. 227 (3g`(B.s; (3Bd MejO, SYO Hf YHO Gddg Hf YHO GdYRjRs ((3GdQjGV (B:s (3OGQ GdUejYj ddfTQ hGdJhRjY,s, 2000)
Keywords: (3GdMOjKs -- (3GdSffs; (3GdMOjKs -- (3LhGeY (B((3YOG eG PcQ aj GdcJH GdSJI(B)s