عاطف عبدالرحمن ادم محمد; آدم عبدالرحمن آدم محمد. The Value Chain Analysis and its Role on the Cost Reduction to Support the Competitive Advantage "Field Study on Food Processing Companies – Khartoum District - Sudan": "دراسة ميدانية على شركات التصنيع الغذائي بولاية الخرطوم 1444هـ - 2022م". White Nile Journal for Studies and Research, [S. l.], n. 22, p. 105–132, 2023. Disponível em: https://journals.wnu.edu.sd/index.php/wnjsr/article/view/49. Acesso em: 13 jun. 2026.