Risk analysis model of mining contracts to Industry 4.0 Modelo de análise de risco de contratos de mineração pra Indústria 4.0. jmabs [Internet]. 2022 Apr. 21 [cited 2026 Oct. 22];4(1):1-16. Available from: http://186.67.134.105/index.php/jmabs/article/view/1689