Siti Hasliza Ahmad Rusmili, et al. “Exploring Ozone Precursor Patterns in The Urban Area: A Case Study in Peninsular Malaysia”. International Journal of Integrated Engineering, vol. 17, no. 1, Apr. 2025, pp. 154-6, https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/18188.