Japanese: The Spoken Language, Part 1

Japanese: The Written Language Volume 1 (Field Test Edition)

Japanese: The Written Language: Part 1, Volume 1: Katakana

Japanese, The Spoken Language: Part 2 (Yale Language Series) (Pt. 2)

Japanese: The Written Language: Part 1, Volume 1 (Workbook) (Yale Language Series)

Japanese: The Spoken Language, Part 1 - A Question and Answer Supplement

Let's Learn Hiragana: First Book of Basic Japanese Writing

Let's Learn Katakana: Second Book of Basic Japanese Writing

Japanese: The Written Language, Part 2: Field Test Edition 1.0

Japanese, The Spoken Language: Part 3 (Yale Language Series) (Pt.3)

Supplement to Japanese: The Spoken Language PT.1