AGHARA, V. N. O.; NWAIZUGBO, I. C.; OPARAH, P. C.; IFEANYICHUKWU, C. D. Sales promotion as a leverage strategy for improving sales and profitability in alcohol beverage industry: A study of Nigeria breweries plc. International research journal of management, IT and social sciences, [S. l.], v. 5, n. 4, p. 18–25, 2018. DOI: 10.21744/irjmis.v5n4.245. Disponível em: https://sloap.org/journals/index.php/irjmis/article/view/245. Acesso em: 5 may. 2026.