Kebenei, Mercy Cheruto, Monicah Mucheru-Muna, and Felista Muriu-Ng’ang’a. “The Potential of Zai Pit Technology and Integrated Soil Fertility Management to Enhance Crop Productivity in Semi-Arid Regions of Sub-Sahara Africa: A Review”. International Journal of Environment, Agriculture and Biotechnology 8, no. 1 (February 10, 2023). Accessed November 24, 2024. https://journal-repository.com/index.php/ijeab/article/view/6012.