Habibah, A., K. Santoso, and A. Kamsyakawuni. “Penerapan Algoritma Hybrid Of Ant Colony And Discrete Firefly Algorithms (HADFA) Pada Capacitated Vehicle Routing Problem”. PRISMA, Prosiding Seminar Nasional Matematika, Vol. 4, Feb. 2021, pp. 500-7, https://journal.unnes.ac.id/sju/prisma/article/view/45005.