The cluster analysis of most important citrus trees in some governorates of Iraq for the year 2019. Periodicals of Engineering and Natural Sciences, [S. l.], v. 8, n. 4, 2020. DOI: 10.21533/pen.v8.i4.1367. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/1367. Acesso em: 1 may. 2026.