Amazon has them -- I just saw somebody had posted back in April they were selling, but I couldn't reply to their post for some reason? Anywho, thought I would help a fellow EMTer make some $$.
In searching for materials on studying ECG/12 Leads, I came across this website authored by a cardiologist and found it to be extremely helpful. And better to watch colorful and descriptive videos than reading a text. If interested, check it out ecgacademy dot com
We used Tim Phalen's "12-Leads in Acute Coronary Syndrome" in school. I liked it, definitely basic but I did learn from it.
I've got Bob Page's book but haven't had the chance to read it. If I get around to it anytime soon I may be down to sell it when I am finished, depending on how I like it.