JOHNSEN, E. Burton V. Dean, Maurice W. Sasieni & Shiv K. Gupia, Mathematics for Modern Management, John Wiley & Sons Ltd., London, 1963, 65 sh. Ledelse og Erhvervsøkonomi, [S. l.], v. 28, 1964. Disponível em: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34147. Acesso em: 5 jan. 2025.