They were originally released in the "Ancient Sanctuary" booster pack, which was released in the first series of Yu-Gi-Oh! trading card game, before the 5D's era.
However, they have been reprinted in various other sets throughout the years. You can find them in:
* "Mythological Collection" booster pack (2007)
* "Legendary Collection" booster pack (2009)
* "Mega Pack 2012" booster pack (2012)
* "Legendary Collection 2014" booster pack (2014)
* "Legendary Collection Mega Pack" booster pack (2016)
* "The Secret of Evolution" booster pack (2017)
If you are looking for these specific cards, you will need to search for these packs or look at older Yu-Gi-Oh! sets.