Fernandes, Victor Lucas, Marcel Veloso Campos, Luiz Henrique de Souza, Maurílio José Inácio, Nilton Alves Maia, Rogerio Santos Maciel, and Douglas Emanuel Souza Veloso. “Implementation of a Filter for Active Noise Cancellation in Earmuffs for Agricultural Tractor Operations”. International Journal for Innovation Education and Research 10, no. 8 (August 1, 2022): 24–32. Accessed February 23, 2025. https://scholarsjournal.net/index.php/ijier/article/view/3853.