Awang, N. A., H. Ahmad, S. F. Norizan, M.Z. Zulkifli, Z.A. Ghani, and S. W. Harun. 2010. “An All-Optical Frequency Up Down-Converter Utilizing Stimulated Brillouin Scattering In A Trf And Dcf For Rof Application”. Journal of Science and Technology 2 (2). https://penerbit.uthm.edu.my/ojs/index.php/JST/article/view/244.