[1] B. S. Fru and T. E. Angwafo, “Effect of Biochar issued from Crop Wasteon the Yield of variety 8034 Cassava in the Humid-Forest Agroecological Zone, Cameroon,” IJHAF, vol. 2, no. 1, pp. 13–27, 2018, doi: 10.22161/ijhaf.2.1.2.