Hastenteufel C, Larentis F. Analysing customers profitability via contribution margin: a study in a business sector of medium size furniture located in Serra Gaúcha. Rev. Prod. Desenvolv. [Internet]. 2015 May 30 [cited 2024 Nov. 24];1(1):60-76. Available from: https://revistas.cefet-rj.br/index.php/producaoedesenvolvimento/article/view/e61