IMMANUEL EDY SURANTA SEBAYANG. Analysis of the Promotion Mix Strategy on the Number of Martabe Savings Customers at PT Bank Sumut, Tembung Branch Office. Jurnal Indonesia : Manajemen Informatika dan Komunikasi, [S. l.], v. 5, n. 3, p. 2216–2227, 2024. DOI: 10.35870/jimik.v5i3.866. Disponível em: https://journal.stmiki.ac.id/index.php/jimik/article/view/866. Acesso em: 10 oct. 2026.