Baxter, Glenn. “Assessing the Carbon Footprint and Carbon Mitigation Measures of a Major Full-Service Network Airline: A Case Study of Singapore Airlines”. International Journal of Environment, Agriculture and Biotechnology 7, no. 5 (October 31, 2022). Accessed November 22, 2024. https://journal-repository.com/index.php/ijeab/article/view/5630.