SHABBOOEI, Ahmad Reza; GHAFERIN, Sanaz Alsadat. Improving Efficiency by Considering Value Chain. International journal of industrial engineering and operational research, [S. l.], v. 5, n. 2, p. 73–81, 2023. DOI: 10.22034/ijieor.v5i2.45. Disponível em: https://bgsiran.ir/journal/ojs-3.1.1-4/index.php/IJIEOR/article/view/45. Acesso em: 5 sep. 2026.