BANGU NGGONA, J.; WIDODO, Z. D.; WIJIASTUTI, S. The Influence of Promotion Strategy, Service Quality and Brand Image on Client Loyalty at PT Semangart Giri Putra . ProBisnis : Jurnal Manajemen, [S. l.], v. 17, n. 1, p. 729–739, 2026. Disponível em: https://ejournal.joninstitute.org/index.php/ProBisnis/article/view/1441. Acesso em: 1 may. 2026.