Toraman S, Şensöğüt C. Estimation of Calorific Value of Lignite Field in Kütahya-Gürağaç (Turkey) by means of Artificial Neural Network. IJEEG [Internet]. 2022 Aug. 25 [cited 2025 Feb. 23];13(3):1-7. Available from: http://econ-environ-geol.org/index.php/ojs/article/view/36