(Funkhouser 1930) Funkhouser, H. Gray (1930), "A short account of the history of symmetric functions of roots of equations" [Penjelasan singkat tentang sejarah fungsi simetris dari akar persamaan], American Mathematical Monthly, 37 (7), Mathematical Association of America: 357–365, doi:10.2307/2299273, JSTOR2299273
jstor.org
(Funkhouser 1930) Funkhouser, H. Gray (1930), "A short account of the history of symmetric functions of roots of equations" [Penjelasan singkat tentang sejarah fungsi simetris dari akar persamaan], American Mathematical Monthly, 37 (7), Mathematical Association of America: 357–365, doi:10.2307/2299273, JSTOR2299273