1. A process algebra based simulation model of a miniload-workstation order picking system
2. Design and analysis of an automated order-picking workstation
3. Andriansyah, R., P. Etman, and J. Rooda. 2009. “Simulation Model of a Single-Server Order Picking Workstation Using Aggregate Process Times.” First International Conference on Advances in System Simulation, IEEE: 23–31.
4. Andriansyah, R., L. F. P. Etman, and J. Rooda. 2010. “Aggregate Modeling for Flow Time Prediction of an End-of-Aisle Order Picking Workstation with Overtaking.” In Proceedings of the 2010 Winter Simulation Conference, IEEE: 2070–2081.
5. Optimal Batching in a Semi-Automated Order Picking System