Sanchez Carrillo, S.E. and Rosso Cerón, A.M. 2022. Operating and maintenance manual for the implementation of the conventional drinking water treatment plant (ptap) in the urban area of the municipality of Bochalema, northern Santander. SAP Biomedical & Chemical Engineering Innovation. 1, (Mar. 2022), 22. DOI:https://doi.org/10.56294/evk202222.