O. Oni, and S.O. Bada. “EFFECTS OF SEED SIZE ON SEEDLING VIGOUR IN IDIGBO (<em>TERMINALIA</em> <em>IVORENSIS</Em>)”. Journal of Tropical Forest Science (JTFS), vol. 4, no. 3, Mar. 1992, pp. 215-24, https://jtfs.frim.gov.my/jtfs/article/view/2001.