ПІСОЦЬКИЙ, А. А. Efficiency of agricultural production in the Poltava region and areas of improvement mechanisms of its development. Scientific Progress & Innovations, [S. l.], n. 2, p. 180–184, 2012. DOI: 10.31210/visnyk2012.02.35. Disponível em: https://journals.pdau.edu.ua/visnyk/article/view/612. Acesso em: 24 aug. 2025.