ARDIANSYAH, R.; ISNA WIJAYANI. Marketing Strategy to Improve Export Services of PT. Varuna Tirta Prakasya (Persero) in National Market Competition. Jurnal Mantik, [S. l.], v. 6, n. 3, p. 2683-2692, 2022. DOI: 10.35335/mantik.v6i3.2924. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/2924. Acesso em: 19 jun. 2026.