V. S. Guambo Tapia, D. A. Valenzuela Erazo, A. M. Saeteros Hernández, and V. F. Noboa Silva, “Effects of nutritive dissolutions of nitrogen, phosphorus and potassium (N-P-K) on the growth of plantules of Juglans Neotropica Diels”, CD, vol. 4, no. 1, pp. 236-252, Jan. 2020.