SEMBIRING, N. Improving the Income of Wood Potatoes (Manihot Utilissima l.) in Medan. International Journal of Economics and Financial Issues, [S. l.], v. 9, n. 1, p. 147–150, 2019. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/7434. Acesso em: 5 oct. 2022.