Title: Chinese Flash Cards Kit Volume 1: HSK Levels 1 & 2 Elementary Level: Characters 1-349 (Online Audio for each word Included), Author: Philip Yungkin Lee
Title: Chinese Flash Cards Kit Volume 3: HSK Upper Intermediate Level (Online Audio Included), Author: Philip Yungkin Lee
Title: Chinese Flash Cards Kit Volume 2: HSK Levels 3 & 4 Intermediate Level: Characters 350-622 (Online Audio Included), Author: Philip Yungkin Lee
Title: Berlitz Vocabulary Study Cards Mandarin (Language Flash Cards), Author: Berlitz
Title: Gu Wu for Secondary Chinese Mandarin: Student Book & CD-ROM, Author: Kwun Shun Shih
Title: Chinese in a Flash Kit Volume 4, Author: Philip Yungkin Lee
Title: Learn Mandarin Chinese: Speak, Write, and Understand Chinese in No Time, Author: John-Francis Grosso