J. I. Anchundia-Santana, J. E. Sánchez-Cano, W. Garcia-Quilachamin, and E. I. Santana-Mantuano, “Validation of An Instrument to Know the Use of Smart Devices in Air Conditioners and Their Improvement in Energy Efficiency: Case Study in Ecuador”, Int. J. Onl. Eng., vol. 17, no. 04, pp. pp. 133–144, Apr. 2021.