I've been using the assistant for several months, and only just learned on the Discord that the sources used to respond to queries are hidden behind the Searching with Kagi link before the results. In the example where I found this, there were four "References" after the results, but 10 sources hidden behind that link.
Sources should be more obvious, especially since any serious use of the Assistant involves checking sources to see if they are legitimate. So either all sources used should be shown at the bottom of the results, or the link at the top should be more obvious. Seeing just a few "references" makes it look like Kagi hasn't found many sources.
Perplexity does this well, with a Sources tab at the top:
