MAHDI, Hawra Thamer; KAMEL, Suhad Barqi; HASSAN, Layla Mohsen. Multi-level marketing strategies as a mechanism to achieve competitive superiority (exploratory research of the opinions of a sample of workers in the Al-Wareth factory for the production of refrigeration. Eximia, [S. l.], v. 12, n. 1, p. 474–485, 2023. DOI: 10.47577/eximia.v12i1.393. Disponível em: https://www.eximiajournal.techniumscience.pluscommunication.eu/index.php/eximia/article/view/393. Acesso em: 8 jun. 2026.