Balola, Y. M., & Hamed, M. A. (2021). 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. Journal of Economic, Administrative and Legal Sciences, 5(20), 119-103. https://doi.org/10.26389/AJSRP.M290621