Hazim Majid, Layth, et al. “Analysis of the Competitive Advantages and the Impact of the Green Energy Resources Utilization at the Mmicro and Macro-Economic Level Financial Analysis and Evaluation”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 46, no. 2, May 2019, pp. 107-14, https://www.gssrr.org/JournalOfBasicAndApplied/article/view/9972.