ULLAH, S. M. E.; ULLAH, M. S.; HOSSAIN, M. S. Design and Implementation of Digital Protection Systems for High-Voltage Transmission Lines and Power Transformers. 知识学习与科学技术期刊 ISSN：2959-6386（在线）, v. 4, n. 4, p. 134–141, 25 12月2025.