Scheepers, Luan, Chanel Bisset, and Hendri Horden. “A MATHEMATICAL MODEL TO DETERMINE THE OPTIMAL AGE FOR HARVESTING PIGS WHILE MAXIMISING PROFITABILITY”. The South African Journal of Industrial Engineering 34, no. 3 (November 17, 2023): 304–317. Accessed May 12, 2025. https://sajie.journals.ac.za/pub/article/view/2934.