Marines Castillo, E. E., E. I. Heredia Carrillo, and C. Garduño GarcÍa. “Construction of a Solar Still Prototype to Reduce Extreme Water Hardness in the Mayan Community Ejido 20 De Noviembre”. European Journal of Engineering and Technology Research, vol. 8, no. 6, Nov. 2023, pp. 18-23, doi:10.24018/ejeng.2023.8.6.3115.