ATHIEF, F. H. N.; RIZKI, D.; NUHA, U.; KURNIAWAN, A. W. The service strategy used by Yayasan Kemanusiaan Kotak Amal Indonesia in maintaining donor loyalty. Insight Management Journal, [S. l.], v. 3, n. 1, p. 31-39, 2022. DOI: 10.47065/imj.v3i1.217. Disponível em: https://journals.insightpub.org/index.php/imj/article/view/217. Acesso em: 1 nov. 2025.