Asbowo, Heri, et al. “Modeling Fresh Product Delivery Routes With Heterogeneous Vehicle Routing Problem With Time Windows and Multi-Trips Model: : A Case Study”. Jurnal Teknik Industri: Jurnal Keilmuan Dan Aplikasi Teknik Industri, vol. 27, no. 2, Sept. 2025, pp. 191-02, https://jurnalindustri.petra.ac.id/index.php/ind/article/view/31307.