KALMÁR, Katalin; KÁRPÁTI, László. Efficiency evaluation of service marketing at a Hungarian telecommunication company. Acta Agraria Debreceniensis, [S. l.], n. 33, p. 41–47, 2009. DOI: 10.34101/actaagrar/33/2850. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/2850. Acesso em: 22 nov. 2024.