Пабат, А. А. “World’s Alternative Energy and National Perspectives”. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry) 1, no. 11 (April 15, 2015): 49–54. Accessed December 22, 2024. https://eung.nung.edu.ua/index.php/ecom/article/view/141.