Digital Marketing Strategy Based on Market Penetration and Focused Differentiation in a Warehousing Services Startup: A Case Study of Secure Stash. Efektor, [S. l.], v. 13, n. 1, p. 25–37, 2026. DOI: 10.29407/e.v13i1.28145. Disponível em: https://ojs.unpkediri.ac.id/index.php/efektor-e/article/view/28145. Acesso em: 2 may. 2026.