(3GdeSfO (B/s - (3GdTGTj, GdgjKe Hf cdjH Hf TQjM,s (3J(B. 335 (3g`(B.s; (3GdSdaj, eMahX GdQMef Rjf Gddg,s (3J(B. 1418 (3g`(B.s ((3GdeOjfI GdefhQI (B:s (3OGQ GdYdhe h GdMce,s, 1989)
Keywords: (3GdMOjKs -- (3LhGeY (B((3YOG eG PcQ aj GdcJH GdSJI(B)s; (3GdMOjKs -- (3eSfO GdgjKe Hf cdjH GdTGTjs