S. Cahyati, R. Krusdianto, D. P. B. Aji, J. P. Siregar, and J. A. Laskmono, “The influence of coffee ground waste on the thermal and mechanical characteristics of polymer-based 3D printing filament materials”, Mech. Eng. for Soc. and Ind., vol. 6, no. 1, pp. 230–239, May 2026, doi: 10.31603/mesi.14897.