Adamou, Zanguina, Mella M. Tchicama, Addam kiari Saidou, and Ousmane Garba. “Development of Compost from Agro-Food Residues: Analysis of the Crop Nutrients and Trace Elements”. American Scientific Research Journal for Engineering, Technology, and Sciences 43, no. 1 (May 13, 2018): 1–12. Accessed May 3, 2024. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/4075.