HKCL <a href="https://en.wikipedia.org/wiki/Hong_Kong_Central_Library" class="extiw" title="en:Hong Kong Central Library">en:Hong Kong Central Library</a> <a href="https://zh.wikipedia.org/wiki/%E4%B8%AD%E8%8F%AF%E6%9B%B8%E5%B1%80%EF%BC%88%E9%A6%99%E6%B8%AF%EF%BC%89" class="extiw" title="zh:中華書局（香港）">zh:中華書局（香港）</a> September 2021
<a href="//commons.wikimedia.org/wiki/User:Jrmallpo_RZIMTao" title="User:Jrmallpo RZIMTao">Jrmallpo RZIMTao</a>
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