Tohsaku, Y. H. (1999). Yookoso. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Tohsaku, Yasu Hiko. Yookoso. McGraw-Hill, 1999.
Lua MLA (8ú heag.)Tohsaku, Yasu Hiko. Yookoso. McGraw-Hill, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.