(3JXde GdRgQGA ef GgQGb OeGA Bd GdYHGA Ydjge GdSdGe (B/ s - (3GdbRhjfj, QVj Hf fHj, s (3Jhaj HYO (B1134 (3gLQj, s ((3be, GjQGf (B: s (3GdTQja GdQVj, s, 1980)
Keywords: (3GdMSjf Hf Ydj Hf GHj WGdH (B((3Ydjg GdSdGe(B)(3, s -- (3GdGeGe, s -- 4-61 (3gLQj(B.s; (3eYQcI cQHdGA, (B61 (3g`(B.s; (3KhQI GdeNJGQ Hf GHj YHjOI, s -- 67 (3g`(B.s