SANGALANG JR., Leonardo P..
A Product Mix Optimization Model.
Philippine Engineering Journal, [S.l.], v. 3, n. 2, nov. 2021.
ISSN 2718-9287.
Available at: <https://www.journals.upd.edu.ph/index.php/pej/article/view/8357>. Date accessed: 06 sep. 2025.