(3cQI GdjO ddfGTFjf hJdGePIGdeOGQS (B/ s - (3dGfLQjha, LjQOs; (3RjfH GdNVGQi (B((3eQGLY(B)s; (3ceGd YHOGdMejOs ([S.N] : (3OGQ GdacQ GdYQHi , s, 1978)
Keywords: (3JOQjHs; (3cQI GdjOs; (3GdGdYGH GdLeGYjIs; (3GdGdYGH GdMQcjIs