OGU, Sokari Jusih. Evaluating the extend of marketing plan in Nigerian business organization. Journal of Commerce, Management, and Tourism Studies, Indonesia, v. 3, n. 1, p. 23–32, 2024. DOI: 10.58881/jcmts.v3i1.167. Disponível em: https://ympn.co.id/index.php/JCMTS/article/view/167. Acesso em: 17 aug. 2025.