SHELIAWATI SIREGAR; SINUHAJI, Yose Andre. THE EFFECT OF COMPETENCY ON INCREASING HUMAN RESOURCE PRODUCTIVITY AT THE PALM OIL MILL OF PT. TASIK RAJA. Jurnal Silva Samalas, [S. l.], v. 9, n. 1, p. 21–26, 2026. Disponível em: https://e-journal.undikma.ac.id/index.php/jss/article/view/20881. Acesso em: 9 sep. 2026.