Shin Nihongo no Kiso I (Grammatical Notes) Vol. 1 (Shin Nihongo no Kiso I: Bunpou Kaisetsusho Eigoban) (in Japanese)
Shin Nihongo No Kiso II: Grammar (Japanese and English Edition)
Introduction to Modern Japanese
Shin Nihongo No Kiso II (Japanese and English Edition)
Japanese Hiragana & Katakana for Beginners: First Steps to Mastering the Japanese Writing System (CD-ROM Included)