N. Nayan, M. Hashim, Y. Saleh, H. Mahat, M. H. Luyan, and N. S. M. Zaky, “Spatial Variation of Tropical Urban Carbon Dioxide Concentration: A Case Study of KualaLumpur”, Psychosocial rehabilitation, vol. 24, no. 8, pp. 9049–9074, Oct. 2020, doi: 10.61841/x0wqff65.