Abdullah, H. F. “Multicriteria Scheduling Problems to Minimize Total Tardiness Subject to Maximum Earliness or Tardiness”. Ibn AL-Haitham Journal For Pure and Applied Sciences 23, no. 1 (May 25, 2017): 311–320. Accessed November 23, 2024. https://jih.uobaghdad.edu.iq/index.php/j/article/view/988.