Pokémon HeartGold and SoulSilver Versions - Bulbapedia, the community-driven Pokémon encyclopedia

File:Olivine City HGSS.png - Bulbapedia, the community-driven Pokémon encyclopedia

File:HeartGold SoulSilver Silver.png - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon HeartGold Version and Pokémon SoulSilver Version, Pokémon Wiki

Apriblender - Bulbapedia, the community-driven Pokémon encyclopedia

Why We're Still Playing… Pokémon HeartGold and SoulSilver, heart gold pokemon

Pokéwalker - Bulbapedia, the community-driven Pokémon encyclopedia

Appendix:HeartGold and SoulSilver walkthrough/Section 3 - Bulbapedia, the community-driven Pokémon encyclopedia

List of items by pocket (HeartGold and SoulSilver) - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon HeartGold and SoulSilver - Wikipedia