R.S. Maro, S.A.O. Chamshama, V.R. Nsolomo, and S.M. Maliondo. “SOIL CHEMICAL CHARACTERISTICS IN A NATURAL FOREST AND A <em>CUPRESSUS</em> <em>LUSITANICA</Em> PLANTATION AT WEST KILIMANJARO, NORTHERN TANZANIA”. Journal of Tropical Forest Science (JTFS), vol. 5, no. 4, June 1993, pp. 465-72, https://jtfs.frim.gov.my/jtfs/article/view/1962.