LaTeX/Floats, Figures and Captions - Wikibooks, open books for an open world
Subfigure in LaTeX - Full Guide - LaTeX-Tutorial.com
cross referencing - Change format of reference to a subfigure - TeX - LaTeX Stack Exchange
LaTeX/Floats, Figures and Captions - Wikibooks, open books for an open world
r - knitr/rmarkdown/Latex: How to cross-reference figures and tables? - Stack Overflow
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