SenelwaK.; EkakoroE.; KirongoB. B.; EtiégniL.; OroriB.; LipwoniV.; KatigoJ. K.; MbomaL. M. Effect of Charcoal Earth Kilns Construction and Firing on Soil Chemical Characteristics. Jurnal Manajemen Hutan Tropika, v. 15, n. 3, p. 91-95, 11.