ZHANG, Ting. Analysis of Profit Model of a Medical Beauty Company from the Perspective of Value Chain. International Journal of Global Economics and Management, London, U.K., v. 3, n. 2, p. 408–414, 2024. DOI: 10.62051/ijgem.v3n2.47. Disponível em: https://wepub.org/index.php/IJGEM/article/view/2141. Acesso em: 29 may. 2026.