Millington, S. (1993). Nihongo pera pera!: A user's guide to Japanese onomatopoeia. Charles E. Tuttle.
Lua i Stíl Chicago (17ú heag.)Millington, Susan. Nihongo Pera Pera!: A User's Guide to Japanese Onomatopoeia. Rutland, Vt: Charles E. Tuttle, 1993.
Lua MLA (9ú heag.)Millington, Susan. Nihongo Pera Pera!: A User's Guide to Japanese Onomatopoeia. Charles E. Tuttle, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.