Service Marketing Mix Strategies in Digital Higher Education: Implications of GST for the Expanding E-Learning Ecosystem.”. Knowledgeable Research A Multidisciplinary Journal, [S. l.], v. 5, n. 07, p. 72–80, 2026. DOI: 10.57067/. Disponível em: https://knowledgeableresearch.com/index.php/1/article/view/922. Acesso em: 30 jul. 2026.