SITINDAON, N.; LUBIS, N. W.; MALAU, G. T.; SIBURIAN, K. M. Y.; AYUNINGRUM, U. S. Promotion Strategy in Increasing Customer Loyalty in Companies. Holistic Science, [S. l.], v. 4, n. 3, p. 362–372, 2024. DOI: 10.56495/hs.v4i3.728. Disponível em: https://jurnal.larisma.or.id/index.php/HS/article/view/728. Acesso em: 27 aug. 2025.