PURNAMA, Y. I. Implementation of the triple bottom line concept to improve sustainable marketing performance. Journal of Economics and Business Letters, [S. l.], v. 4, n. 2, p. 40–50, 2024. DOI: 10.55942/jebl.v4i2.284. Disponível em: http://journal.privietlab.org/index.php/JEBL/article/view/284. Acesso em: 6 jul. 2025.