Latex Tutorial 7 of 11: References (Bibliography) and Citations - YouTube
Latex Figures - Javatpoint
Reading a paper where authors have labels (red circles) in a figure and they are able to use it in the figure reference in the text as well. Thought this was pretty
How to refer to tables and figures, sections, and other parts of your paper
Subfigure in LaTeX - Full Guide - LaTeX-Tutorial.com