Research on the Citywide Promotion and Public Welfare Sales Model of Heyuan Agricultural Specialty Products from the Perspective of E-Commerce. Journal of economic and management development research, [S. l.], v. 2, n. 5, p. 26–31, 2026. DOI: 10.65196/8vjcv752. Disponível em: https://ojs.gfpress.org/jemdr/article/view/296. Acesso em: 21 jun. 2026.