- 『学マス』花海佑芽が6月1日よりプロデュース可能に。花海咲季の妹であり、ライバルでもある存在。誕生日施策も発表. Famitsu.com (in ****anese).
Kodokawa Game Linkage. May 31, 2024.
Retrieved June 1, 2024....
-
website (in ****anese)
Kodokawa Shoten Yosuga no Sora
manga volume 1 (Archived
March 4, 2016, at the
Wayback Machine) (in ****anese)
Kodokawa Shoten Yosuga no...
- 2019),
Nicole First Photobook: hana. (in ****anese) (Softcover ed.), Tokyo:
Kodokawa, ISBN 978-4-047-35456-2 Song, Cho-rong (November 11, 2014). "'솔로 데뷔' 니콜...
- Amsterdam: Ambo
Anthos Uitgevers. ISBN 9789026362538. ****anese
edition (****an):
Kodokawa Corporation. ISBN 9784046063779.
Korean edition (South Korea): Wisdomhouse...
