SALEH, A. F. . Determining the Instantaneous Power Factor of an Electrical System by the use of Hilbert Transform. مجلة البحوث الهندسية والعلوم التطبيقية, [S. l.], v. 1, n. 3, 2022. Disponível em: https://ceh.edu.ly/JERAS/index.php/j/article/view/4. Acesso em: 5 2025.