(3GdegGg GdYQHjI (B/ s - (3UhaGf, CMeOs; (3LGQ Gddg, gGfFgs ((3HjQhJ (B:s (3GdeDSSI GdYQHjg ddOQGSGJ hGdfTQ,s, 1990)
Keywords: (3GdXHGAs; (3fGTFhf UZGQ (B((3SfI(B14-10)s