Fontoura DG da, Bonato SV, Junges V de C, Rodrigues G de O, Salomão CS. Barriers and opportunities of the circular economy in small and medium enterprises: a systematic review of the literature. ReA UFSM [Internet]. 2024 Oct. 7 [cited 2025 Dec. 31];17(3):e5. Available from: https://periodicos.ufsm.br/reaufsm/article/view/86843