SIAHAAN, Djames. Difference Strategy Analysis Which Influences On Competitive Advantage In The Hotel Industry Around Danau Toba. Devotion : Journal of Research and Community Service, [S. l.], v. 4, n. 1, p. 163–176, 2023. DOI: 10.36418/dev.v4i1.367. Disponível em: https://devotion.greenvest.co.id/index.php/dev/article/view/367. Acesso em: 25 jun. 2026.