出国留学考试学习中心. (2011). 新托福120分口语30天速成真经: Original test bible for TOEFL in 30 days. 中国石化出版社.
Dyfyniad Arddull Chicago出国留学考试学习中心. 新托福120分口语30天速成真经: Original Test Bible for TOEFL in 30 Days. 中国石化出版社, 2011.
Dyfyniad MLA出国留学考试学习中心. 新托福120分口语30天速成真经: Original Test Bible for TOEFL in 30 Days. 中国石化出版社, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.