APPLICATION OF RESPONSE SURFACE METHODOLOGY FOR THE OPTIMIZATION MODELING OF DELIVERY FLEXIBILITY FOR SMEs IN NIGERIA. The Journals of the Nigerian Association of Mathematical Physics, [S. l.], v. 65, p. 117 – 124, 2023. Disponível em: https://nampjournals.org.ng/index.php/home/article/view/40.. Acesso em: 17 may. 2024.