Prima 2010) Pokemon Heart Gold & Soul Silver Johto : Prima : Free Download, Borrow, and Streaming : Internet Archive

Pokemon HeartGold and SoulSilver :: Full Walkthrough

Comparing Pokemon Gold and Silver with their Nintendo DS remakes

Pokemon HeartGold Version [Walkthroughs] - IGN

Technophonix — Pokemon Heart Gold & Soul Silver Post Elite Four

Pokemon Heart Gold & Soul Silver adventure map and Pokedex page - Nintendo Official Guide Book - Shogakukan: 9784092271388 - AbeBooks

HG/SS daily & weekly events EASY to navigate map - Pokémon HeartGold Version Forum - Neoseeker Forums

Battle! (Ho-Oh) (JP Version) - Pokémon HeartGold & SoulSilver, SiIvaGunner Wiki

Sinjoh Ruins - Bulbapedia, the community-driven Pokémon encyclopedia

Gold, Silver, Crystal, Heart Gold, and Soul Silver world map.

Pokémon Adventures: HeartGold and SoulSilver, Vol. 2, Book by Hidenori Kusaka, Satoshi Yamamoto, Official Publisher Page