Reference

Tuttle Practical Cambodian Dictionary: English-Cambodian Cambodian-English

The Complete Japanese Adjective Guide:

A Guide to Writing Japanese Kanji & Kana: (JLPT Levels N5 - N3) A Self-Study Workbook for Learning Japanese Characters

250 Essential Chinese Characters Volume 1: For Everyday Use (HSK Level 1)

Kanji Fast Finder:

The Learner's Japanese Kanji Dictionary:

A Chinese Character a Day Practice Pad Volume 1: Simplified Character Edition (HSK Levels 1 & 2)

Japanese Kanji a Day Practice Pad Volume 1:

Japanese Kana Cards Kit:

Japanese Kanji Cards Kit Volume 1:

Chinese Character Fast Finder: Simplified Characters

Kanji Cards Kit Volume 2: