(3CHh YHjOI Hf GdLQGM (B/s - (3OGQZhK, QTGO(B.s ((3HjQhJ (B:s (3OGQ GdfaGFS,s, 1981)
Keywords: (3CHh YHjOI Hf GdLQGM, YGeQ Hf YHO Gddg Hf GdLQGM,s -- 40 (3b(B. (3g`(B.-18 (3g`(B.s; (3GdUMGHI hGdJGHYhfs