VOLIAK, L. Analytical assessment of sunflower production in ukraine. Turystyka i Rozwój Regionalny, [S. l.], n. 16, p. 101–110, 2021. DOI: 10.22630/TIRR.2021.16.23. Disponível em: https://tirr.sggw.edu.pl/article/view/3368. Acesso em: 21 lis. 2024.