M. NADUBE (PH.D), P.; EBITIMI GOWON, T. CELEBRITY ENDORSEMENT AND SALES PERFORMANCE OF TELECOMMUNICATION FIRMS IN PORT-HARCOURT. BW Academic Journal, [S. l.], p. 13, 2023. Disponível em: https://bwjournal.org/index.php/bsjournal/article/view/1154. Acesso em: 7 may. 2026.