(3TjN GdeVjQI GHh gQjQI (B: s (((3Ghd QhGjI GJge aj GdGSdGe(B)) / s - (3GHh QjI, eMehO, s 1889-1970(3, s; (3GdNWjH, eMeO YLGL, s 1932- ([(3GdbGgQI(B] (3eUQ (B: s (3OGQ GdeYGQa (B969.s, 1969)
(3jJVef EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GHh gQjQI, YHO GdQMef Hf UNQ GdOhSj, s -- 21 (3bHd GdgLQI(B-59 (3gLQj(B.s; (3GdUMGHI hGdJGHYhf(B.s