Balola YM, Hamed MA. The Role of the Cost Method Based on Specifications in Supporting the Competitiveness of the Industrial Sector of Poultry Companies’ A Field Study on Arab Poultry Company-Khartoum. JEALS [Internet]. 2021 Oct. 30 [cited 2025 Dec. 20];5(20):119-03. Available from: https://ajsrp.ojsexpert.com/index.php/jeals/article/view/4318