Aside from what Evo said, and since the mama is the one who passes-on her worms to the pups, the truth is proper worming of the pups begins with
proper worming of the bitch before conception,
during gestation,
and after whelping ... all of this will ensure that your pups get minimal worm transmission from her to them ... before you even begin to talk about worming the pups themselves
Keeping the mama in an above-ground pen, and swapping her to a new pen every day (while you clean-out the dirty one) is also a great way to keep worms to a minimum ...
By contrast, if the mama isn't wormed, and if she's being kept in a dirt-floor pen, or even a cement-floor pen, she will be nothing but a massive worm factory passing hundreds of thousands of worm eggs onto her pups ... and her pups will become the same thing.
So, since you don't want to hit your hip pocket and learn everything at once, you might want to read
this article for some more info. Just bits and pieces from my book.
Jack