Macalou, Salouma, Samuel Mwonga, and Amos Musandu. “Performance of Two Cassava (Manihot Escculenta Crantz) Genotypes to NPK Fertilizer in Ultisols of Sikasso Region, Mali”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 38, no. 2 (May 17, 2018): 189–206. Accessed May 5, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8942.