Azarya NJ Siahaan, Charla Tri Selda Manik and Saut Situmorang 2021. Optical Cable Backbone Network Design In The Province Kalimantan East Use Technology DWDM OTN. Journal of Science Technology (JoSTec). 3, 1 (Dec. 2021), 75–79. DOI:https://doi.org/10.55299/jostec.v3i1.56.