4P营销理论视角下出版企业的经营策略研究——以“未读”品牌为例. 教育与教法, [S. l.], v. 1, n. 3, p. 52–56, 2026. DOI: 10.71411/jyyjx.2026.v1i3.1290. Disponível em: https://ojs.shiharr.cn/index.php/jyyjx/article/view/1290. Acesso em: 28 apr. 2026.