ÖZER ÖREN; CEM ŞENSÖĞÜT. Comparison of Present Coal and Renewable Energy Sources in Turkey . International Journal of Economic and Environmental Geology, [S. l.], v. 9, n. 2, p. 26–34, 2018. DOI: 10.46660/ijeeg.v9i2.652. Disponível em: https://www.econ-environ-geol.org/index.php/ojs/article/view/652. Acesso em: 21 dec. 2025.