1. Lamb K, Widianto S. Aerial images of expanding graves capture Indonesia’s deadliest days. Reuters. 8 July 2021. www.reuters.com/world/asia-pacific/aerial-images-expanding-graves-capture-indonesias-deadliest-days-2021-07-08.
2. Jakarta nears herd immunity as half of its population have had covid-19: survey. Jakarta Globe. 11 July 2021. https://jakartaglobe.id/news/jakarta-nears-herd-immunity-as-half-of-its-population-have-had-covid19-survey.