Nguyen, T. N., Goh Guan Gan, G., & Parvin Hosseini, S. M. (2021). Do Environmental Investments for Production Pay Off? A Study in Vietnam’s Small and Medium-sized Enterprises. International Journal of Energy Economics and Policy, 11(6), 551–559. Retrieved from https://econjournals.com./index.php/ijeep/article/view/11836