« Reliability Evaluation and Optimization of Solar Based Ammonia Urea Production System: A Study on Lethal and Nonlethal Failures with Coverage Factor Considerations », NIJOR, vol. 3, nᵒ 1, p. 20–41, déc. 2025, Consulté le: 15 juin 2026. [En ligne]. Disponible à: https://nijor.org.ng/index.php/nijor/article/view/4