J. C. Toledo Sarango, K. D. Torres Mañay, and S. M. Torres Segarra, “Determination of Escherichia coli/coliforms in lettuce sold in the 10 de Agosto market in the city of Cuenca”, Tesla rev. cient., vol. 3, no. 2, p. e257, Nov. 2023, doi: 10.55204/trc.v3i2.e257.