Books
Complete Guide to Pronunciation in Pinyin Volume II
2019
Complete Guide to Pronunciation in Pinyin Volume I
2019
Quick Guide to Pronunciation of Pinyin Basic Letters
2019
Picture sound book for young children for learning Chinese words related to World of opposites
2018
Picture sound book for young children for learning Chinese words related to Things in a house Volume 2
2018
Picture sound book for young children for learning Chinese words related to Things in a house Volume 1
2018