Use the Focus option to specific your information need. Selecting "Academic" will narrow results down to what Perplexity considers scholarly sources.
Asking a follow up question after your original search can help narrow your results or be more clear about what you were looking for.
Creating an account (using Google, Apple, or email) allows you to do a Pro Search. This search option includes a way to narrow down your topic and also gives you additional results. With a free account your Pro Searches are limited per day.
