Gonzaga, N. R., Pepito, S. L. A., Octavio, R. P., Gonzaga, A. B., & Rogers, G. S. (2017). Growth and yield performance of lettuce (Lactuca sativa Linn) under protected and conventional cultivation. Annals of Tropical Research, 39(Supplement B), 137–143. https://doi.org/10.32945/atr39sb11.2017