ROHILAH, R.; SUNARYA, E.; DANIAL, R. D. M. Analysis of Competitive Strategy Innovations: Case A Course and Training Institutes AHA Smart Matematika Jakarta. International Journal of Economics (IJEC), [S. l.], v. 2, n. 2, p. 231–243, 2023. DOI: 10.55299/ijec.v2i2.479. Disponível em: https://ejournal.ipinternasional.com/index.php/ijec/article/view/479. Acesso em: 26 nov. 2024.