Gunawan, T., and L. Dewi. “The Role of Supply Chain: Capability and Flexibility to Improve Performance: (Study at PT. Sumber Djaja)”. Primanomics : Jurnal Ekonomi & Bisnis, vol. 20, no. 3, Aug. 2022, pp. 237-48, doi:10.31253/pe.v20i3.1169.