Tone Sandhi: Tone Changes for the Character 一 < Skritter Blog

Skritter Blog: Chinese and Japanese characters, made fun: Learn about the Chinese and Japanese language, culture, and the latest Skritter developments.

Tone Change Rules In Mandarin Chinese - Mandarin Blueprint

Rules for Changing Tones in Chinese

Tone change rules - Chinese Pronunciation Wiki

Guide to Tone Changes in Chinese — Han Hai LS