于阳. (2008). 给幸福留一扇门: Leave a door open for happiness. 陕西师范大学出版社.
Lua i Stíl Chicago (17ú heag.)于阳. 给幸福留一扇门: Leave a Door Open for Happiness. 陕西师范大学出版社, 2008.
Lua MLA (8ú heag.)于阳. 给幸福留一扇门: Leave a Door Open for Happiness. 陕西师范大学出版社, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.