Rabb Andrews, T. (2004). The use of Teddy Bears to help develop interpersonal context to promote intrinsic motivation. Universidad de Costa Rica.
Lua i Stíl Chicago (17ú heag.)Rabb Andrews, Tamatha. The Use of Teddy Bears to Help Develop Interpersonal Context to Promote Intrinsic Motivation. Universidad de Costa Rica, 2004.
Lua MLA (9ú heag.)Rabb Andrews, Tamatha. The Use of Teddy Bears to Help Develop Interpersonal Context to Promote Intrinsic Motivation. Universidad de Costa Rica, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.