NGUYEN , Tran Trung. The usage of digital marketing tools among Vietnamese B2B start-ups in building customer relationships. Journal of Finance - Marketing Research, [S. l.], v. 15, n. 5, p. 33–45, 2024. DOI: 10.52932/jfm.v15i5.525. Disponível em: https://jfm.edu.vn/index.php/jfme/article/view/784. Acesso em: 15 dec. 2025.