Singla, Shakuntla, Umar Muhammad Modibbo, Mohammed Mijinyawa, Subhash Malik, Shubham Verma, and Pooja Khurana. “Mathematical Model for Analysing Availability of Threshing Combine Machine under Reduced Capacity”. Yugoslav Journal of Operations Research 32, no. 4 (November 1, 2022): 425–437. Accessed August 25, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/709.