WIDIATI , Endah; SEFUDIN , Akhmad. Higher Education Strategy: Sustainable Competitive Advantages in Niche Market Segment . KnE Social Sciences, [S. l.], v. 3, n. 26, p. 311–327, 2019. DOI: 10.18502/kss.v3i26.5383. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/5383. Acesso em: 15 jul. 2025.