裴春艳. (2011). 大皮球和小皮球: Big rubber ball and small rubber ball. 天津教育出版社.
Lua i Stíl Chicago (17ú heag.)裴春艳. 大皮球和小皮球: Big Rubber Ball and Small Rubber Ball. 天津教育出版社, 2011.
Lua MLA (8ú heag.)裴春艳. 大皮球和小皮球: Big Rubber Ball and Small Rubber Ball. 天津教育出版社, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.