ONOBRAKPEYA; STANLEY, Akpevwe. HIGH-TECH MARKETING AND SUSTAINABLE COMPETITIVE ADVANTAGE IN THE NIGERIAN SMARTPHONE INDUSTRY. Open Access International Journal of Science and Engineering , [S. l.], v. 2, n. 2, p. 16–26, 2026. DOI: 10.65521/oaijse.v2i2.2277. Disponível em: https://journals.mriindia.com/index.php/oaijse/article/view/2277. Acesso em: 1 jun. 2026.