Murillo , Hernán Javier Guzmán, José Marcelo Torres Ortega, and William Niebles. “Engagement and Performance at Work: Relationship Between Motivation, Concentration and Persistence in the Work Environment”. Journal of Ecohumanism 3, no. 5 (June 30, 2024): 1485 –. Accessed March 9, 2025. https://ecohumanism.co.uk/joe/ecohumanism/article/view/6282.