Sazali, M.A., N. A. Shairi, and Z. Zakaria. “Microstrip Triplexer Design: A Review”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 9, no. 2-13 (September 27, 2017): 81–86. Accessed April 24, 2024. https://jtec.utem.edu.my/jtec/article/view/2570.