Performance analysis of B2B and B2C companies: A case study of selected Balkan countries. Periodicals of Engineering and Natural Sciences, [S. l.], v. 9, n. 2, p. 441–453, 2021. DOI: 10.21533/pen.v9.i2.753. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/753. Acesso em: 10 jun. 2026.