TIRTAYASA, S. Analysis of Competitive Strategies to Improve Business Performance of Aerospace Training and Education Institute Gemilang Training Center. LEGAL BRIEF, [S. l.], v. 11, n. 2, p. 929–943, 2022. Disponível em: https://legal.isha.or.id/index.php/legal/article/view/215. Acesso em: 29 aug. 2026.