Mutangili, Solomon Kyalo. “Supply Chain Management in Times of Covid-19: Challenges and Lessons Learnt”. Journal of Procurement & Supply Chain 5, no. 1 (February 22, 2021): 1–12. Accessed July 20, 2025. https://stratfordjournalpublishers.org/journals/index.php/journal-of-procurement-supply/article/view/677.