Almeida, D., Souza, W. and Lavor, D. 2018. Comparative analysis between SINAPI’s indexes and those adopted by the companies of the city of Manaus in the services of concrete production and frame. ITEGAM-JETIA. 4, 13 (Mar. 2018), 176-183. DOI:https://doi.org/10.5935/2447-0228.201866.