Kalubowila, K., P. . Karunaratne, B. Yapa, and C. . Arambepola. “Measuring Household Carbon Footprint: Population-Specific Adaptation and Validation of a Tool for South Asia”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 87, no. 1, Apr. 2022, pp. 45-57, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/7523.