Oktafianto, Ezra Athalla, and Niniet Indah Arvitrida. “eterogeneous ehicle outing roblem ith imultaneous ickup and elivery to ptimize ast ile eliveries of ustainable etail”. Jurnal Transportasi: Sistem, Material, dan Infrastruktur 6, no. 1 (July 19, 2025): A285-A291. ccessed December 6, 2025. https://journal.its.ac.id/index.php/transportasi/article/view/2563.