For images that don’t list the source in themselves like these I like to put the source in the alt text like this

![https://cepr.org/voxeu/columns/soviets-oligarchs-inequality-and-property-russia-1905-2016](https://lemmy.ml/pictrs/image/65a34c1d-e49d-47b1-bf83-07c344b109d5.png)