presentasi kelompok di: https://www.dropbox.com/s/6c7k833r4mxjjlh/Makalah%20Optik%20Lanjut%20-%20Multipleksing%20Optik.rar presentasi ERN di https://www.dropbox.com/s/zwoowd055613woa/Wavelength%20Division%20Multiplexing.pptx