Putra BI, Ardiansah AY. Operational Productivity Index Patterns in Logistics Services Using Mundel Model: Pola Indeks Produktivitas Operasional dalam Layanan Logistik Menggunakan Model Mundel. ijler [Internet]. 2026 Feb. 20 [cited 2026 Feb. 27];20(3):10.21070/ijler.v20i3.1505. Available from: https://ijler.umsida.ac.id/index.php/ijler/article/view/1505