Amir Abbas Najafi and Nima Zoraghi and Fatemeh Azimi, Scheduling a Project to Minimize Costs of Material Requirements. journal = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2011, vol. 54(6). 968 - 971 [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/9664.