Augen, League of Comic Geeks is a really good website for finding variant covers. It looks like some of those Power Girl covers may be retail exclusives, which means that you have to order them from the stores or websites that offer them. (Sometimes they have eBay or Amazon storefronts.)
Augen, League of Comic Geeks is a really good website for finding variant covers. It looks like some of those Power Girl covers may be retail exclusives, which means that you have to order them from the stores or websites that offer them. (Sometimes they have eBay or Amazon storefronts.)