Herman Koto, Muhammad Ikmal Harris, and Elfarizanis Baharudin. 2022. “Single Layer Wide Angle Microwave Absorber for X Band Application With Bandwidth Enhancement”. Evolution in Electrical and Electronic Engineering 3 (2): 958-67. https://penerbit.uthm.edu.my/periodicals/index.php/eeee/article/view/8868.