Evaluation of the Voltaic Arc Welding Training at Codesa, Esmeraldas: Diagnosis and Recommendations. investigacionysaberes [Internet]. 2025 Sep. 10 [cited 2026 Nov. 6];15(3):97-112. Available from: http://www.revistasdigitales.utelvt.edu.ec/revista/index.php/investigacion_y_saberes/article/view/342