SALEH, C., W. H. HARDIWINATA, L. I. MINDARTI, and S. ZAUHAR. “Management of Palm Oil by the Government of the Republic of Indonesia”. Utopía Y Praxis Latinoamericana, Vol. 25, no. 1, Nov. 2020, pp. 336-53, http://www.produccioncientifica.luz.edu.ve/index.php/utopia/article/view/34384.