Narita, Sayoko (April 5, 2021). "『ポケモンカードゲーム』初期カードの背景素材が特定される。任天堂ファンの"テクスチャハンティング"は止まらない"[The background materials of the early Pokémon Trading Card Game cards have been identified. Nintendo fans' "texture hunting" continues]. Automaton Japan (in Japanese). Archived from the original on January 29, 2026. Retrieved January 28, 2026.
"【ポケマスEX】全バディーズ(トレーナー/キャラ)衣装一覧"[[Pokémon Masters EX] All Sync Pair (Trainer/Character) Costumes]. Famitsu (in Japanese). September 1, 2023. Archived from the original on January 29, 2026. Retrieved January 17, 2026.
Hatfield, Lisa (January 1999). "Pockemon Journal Jan 1999". Gamefreak.co.jp (in Japanese). Archived from the original on February 21, 1999. Retrieved January 17, 2026.
Otsuka, Sawasdee (December 25, 2021). "実はオーキド博士の先輩? 『ダイパリメイク』意外と知らない"あの博士"の素性"[Is he actually Professor Oak's senior? The surprising truth about "that professor" in the Diamond and Pearl remakes]. Inside Games (in Japanese). Archived from the original on December 25, 2021. Retrieved January 15, 2026.
Dopey (May 18, 2021). "【ポケットモンスター】ポケモン博士人気ランキングTOP8! 第1位はオーキド博士に決定【2021年最新投票結果】"[[Pokémon] Top 8 Most Popular Pokémon Professors! Professor Oak Takes the Top Spot [Latest 2021 Voting Results]]. ITmedia NetLab (in Japanese). Archived from the original on November 26, 2025. Retrieved January 14, 2026.
Kikka (September 8, 2016). "オーキド博士(アローラのいとこ)初お目見え ネットでは「松崎しげる?」と話題に"[Professor Oak (Alola's cousin) makes his first appearance, sparking online buzz with questions like "Is that Shigeru Matsuzaki?"]. ITmedia NetLab (in Japanese). Archived from the original on January 29, 2026. Retrieved January 28, 2026.
Kosmina, Ben (February 14, 2004). "Pokémon Channel Review". Nintendo World Report. Archived from the original on April 8, 2025. Retrieved January 16, 2026.
"戸田恵子"[Keiko Toda]. まうまう (in Japanese). Archived from the original on August 10, 2023. Retrieved January 17, 2026.
"森功至"[Katsuji Mori]. まうまう (in Japanese). Archived from the original on May 19, 2016. Retrieved January 17, 2026.
"【ポケマスEX】全バディーズ(トレーナー/キャラ)衣装一覧"[[Pokémon Masters EX] All Sync Pair (Trainer/Character) Costumes]. Famitsu (in Japanese). September 1, 2023. Archived from the original on January 29, 2026. Retrieved January 17, 2026.
Hatfield, Lisa (January 1999). "Pockemon Journal Jan 1999". Gamefreak.co.jp (in Japanese). Archived from the original on February 21, 1999. Retrieved January 17, 2026.
Otsuka, Sawasdee (December 25, 2021). "実はオーキド博士の先輩? 『ダイパリメイク』意外と知らない"あの博士"の素性"[Is he actually Professor Oak's senior? The surprising truth about "that professor" in the Diamond and Pearl remakes]. Inside Games (in Japanese). Archived from the original on December 25, 2021. Retrieved January 15, 2026.
Kosmina, Ben (February 14, 2004). "Pokémon Channel Review". Nintendo World Report. Archived from the original on April 8, 2025. Retrieved January 16, 2026.
Narita, Sayoko (April 5, 2021). "『ポケモンカードゲーム』初期カードの背景素材が特定される。任天堂ファンの"テクスチャハンティング"は止まらない"[The background materials of the early Pokémon Trading Card Game cards have been identified. Nintendo fans' "texture hunting" continues]. Automaton Japan (in Japanese). Archived from the original on January 29, 2026. Retrieved January 28, 2026.
Dopey (May 18, 2021). "【ポケットモンスター】ポケモン博士人気ランキングTOP8! 第1位はオーキド博士に決定【2021年最新投票結果】"[[Pokémon] Top 8 Most Popular Pokémon Professors! Professor Oak Takes the Top Spot [Latest 2021 Voting Results]]. ITmedia NetLab (in Japanese). Archived from the original on November 26, 2025. Retrieved January 14, 2026.
Kikka (September 8, 2016). "オーキド博士(アローラのいとこ)初お目見え ネットでは「松崎しげる?」と話題に"[Professor Oak (Alola's cousin) makes his first appearance, sparking online buzz with questions like "Is that Shigeru Matsuzaki?"]. ITmedia NetLab (in Japanese). Archived from the original on January 29, 2026. Retrieved January 28, 2026.