https://fisheriesdept.gov.lk/web/index.php?option=com_content&view=article&id=475:supply-of-international-maritime-satellite-inmarsat-system-c-service-for-the-vessel-monitoring-system-vms&catid=23:special-notices&lang=en&Itemid=266
https://fisheriesdept.gov.lk/web/index.php?option=com_content&view=article&id=475:supply-of-international-maritime-satellite-inmarsat-system-c-service-for-the-vessel-monitoring-system-vms&catid=23:special-notices&lang=en&Itemid=266