Akhtar S, Riaz A, Noor F, Zainab U, Asim F. The Willingness of Residents to Pay for Improving Air Quality. IJIAS [Internet]. 2021Jun.16 [cited 2025Aug.21];1(2):144-50. Available from: https://ojs.literacyinstitute.org/index.php/ijias/article/view/272