Johnson, E. C., E. I. Etim, et E. O. . Archibong. « Isolation and Anti-Oxidant Potentials of Parahydroxybenzaldehyde from the Methanol Leaf Extract of Aspilia Africana (Pers.) C.D. Adams (Asteraceae) ». Nigerian Journal of Pharmaceutical and Applied Science Research, vol. 6, nᵒ 1, mars 2017, p. 26-32, https://nijophasr.net/index.php/nijophasr/article/view/161.