Abdullah, Lazim, Harish Garg, Noor Azzah Awang, Herrini Mohd Pauzi, and Hazwani Hashim. 2022. “Non-Pharmaceutical Intervention Strategies to Respond to the COVID-19 Pandemic: Preference Ranking Method”. Operational Research in Engineering Sciences: Theory and Applications 5 (3), 108-30. https://doi.org/10.31181/oresta051022076a.