Valencia, V., P. Y. Purba, C. Chery, Y. H. Nababan, and N. R. Herawati. “Analisis Kinerja Karyawan PT.Sumatera Inti Karet”. Management Studies and Entrepreneurship Journal (MSEJ), vol. 5, no. 2, Nov. 2024, pp. 5629-41, doi:10.37385/msej.v5i2.5101.