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 dicembre 2025 [citato 15 giugno 2026];3(1):20-41. Disponibile su: https://nijor.org.ng/index.php/nijor/article/view/4