(3KhQI CcJhHQ (B: s (3TgGOI eMGQHjf CLGfH (B- (3ebGdGJ h hKGFb (B/ s - (3GdUhjJj, aGQSs ((3OeTb (B:s (3OGQ OeTb ddWHGYI h GdfTQ,s, 1974)
Keywords: (3QhSjGs; (3JGQjN QhSjGs; (3GdKhQI GdQhSjI (B1917s