chandio, H. R., and A. P. Memon. “Time-Frequency Transformation Technique With Various Mother Wavelets for DC Fault Analysis in HVDC Transmission Systems”. Sir Syed University Research Journal of Engineering & Technology, vol. 13, no. 1, June 2023, pp. 84-88, https://sirsyeduniversity.edu.pk/ssurj/rj/index.php/ssurj/article/view/548.