Jermsittiparsert, K., S. Somjai, and S. Toopgajank. “Factors Affecting Firm’s Energy Efficiency and Environmental Performance: The Role of Environmental Management Accounting, Green Innovation and Environmental Proactivity”. International Journal of Energy Economics and Policy, vol. 10, no. 3, Mar. 2020, pp. 325-31, https://www.econjournals.com/index.php/ijeep/article/view/9220.