Kresnanda, Surya, et al. “Management Of Training Systems In Improving Hr Competency In Oil Palm Plantation Companies PT. Kayung Agro Lestari, And PT. Austindo Jaya Nusantara Agri Siais”. International Journal of Science, Technology & Management, vol. 3, no. 4, July 2022, pp. 866-74, doi:10.46729/ijstm.v3i4.553.