Tayyab M, Ahmad A. An Application of Contingent Valuation Method for Reduction in Risk of Premature Mortality due to Air Pollution: A Case Study of Gujranwala, Pakistan. EER [Internet]. 30Dec.2023 [cited 20May2024];6(2):92-14. Available from: https://ojs.umt.edu.pk/index.php/eer/article/view/1559