Refrensi
https://travel.tribunnews.com/
https://www.garuda-indonesia.com/id/id/index
https://www.kemenparekraf.go.id/
https://www.greenpeace.org/indonesia/
https://timesofindia.indiatimes.com/travel
https://www.reuters.com/news/archive/TravelandLeisure09
https://shopee.co.id/shopea2017
https://sg.trip.com/?locale=en_sg
https://www.singaporeair.com/en_UK/sg/travel-info/covid-19/
https://www.thejakartapost.com/travel