How to convert a DFA to GNFA

Sep 2019
1
0
USA
https://gyazo.com/c2a228fd782c5d783e3d2848e3e96478

So, I'm looking for resources that will teach me how to do the steps in the problem, mainly how to convert this to a GNFA.

My book doesn't even mention the GNFA, we just went over it briefly in class. When I do try to convert it as I understand, it is too complicated for me to know how to properly remove the node.

So, I'm not asking for answers, but any resources that will teach me how to do those two things. Thank you!