Y. Mejía Bermúdez, M. Álvarez Arroyo, and G. Luna Bello, “Effectiveness of a foliar biofertilizer on the cultivation of common bean (Phaseolus Vulgaris), Bluefields, RAAS”, Science and Interculturality, vol. 8, no. 1, pp. 128-140, Jul. 2011.