M. Idu and J. U. Ijomah, “Wood Anatomy of some Savanna <I>Fabaceae</I> Species: 2. Dimensional Variation in Fibre and Vessel Elements of <I>Daniellia Oliveri</I> (Rolfe) Hutch and Dalz”, Indian Forester, vol. 126, no. 2, pp. 149–153, Feb. 2000.