Ear Training Book For Level 2/3 Student?

[nickadams]

What is a good book for a level 2/3 student to work on ear training? I have no experience with ear training except for this book:
https://www.sheetmusicplus.com/title/Melody-Playback-Singback-Book-1-Levels-1-4/4940661
which just had me sing (C, D, F, G major) melodies involving intervals of a 1st-5th, and also leading tones and octaves.

So what's a good place for me to start with ear training? (I'm clueless)