Reliability Evaluation and Optimization of Solar Based Ammonia Urea Production System: A Study on Lethal and Nonlethal Failures with Coverage Factor Considerations. NIJOR [Internet]. 22 déc. 2025 [cité 15 juin 2026];3(1):20-41. Disponible à: https://nijor.org.ng/index.php/nijor/article/view/4