《中文技術數字索引 用爲 電華打字機檢字指南》
https://www.fastcompany.com/90635203/ibm-chinese-typewriter-lois-lew
- 2021/11/04 常用字索引 (0100-1103) completed
- 2021/11/22 次常用字索引 (1104-4199) completed
- 2021/12/25 備用字索引 (4200-5389) completed
《中文技術數字索引 用爲 電華打字機檢字指南》
https://www.fastcompany.com/90635203/ibm-chinese-typewriter-lois-lew