FORTUNATA, F.; GINTING, N.; LUHUR, S.; GUNAWAN, E.; SINAGA, M. INFLUENCE OF PERSONAL SELLING, SALES PROMOTION AND CUSTOMER SATISFACTION ON CUSTOMER LOYALTY At PT AMMAY CEMERLANG NUSANTARA, MEDAN. Jurnal Ekonomi, [S. l.], v. 12, n. 02, p. 1076–1079, 2023. Disponível em: https://www.ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/1832. Acesso em: 23 apr. 2026.