Free Christian Ebooks in Chinese and English by Asia Harvest
https://asiaharvest.org/free-ebooks/
https://asiaharvest.org/books-in-chinese/
If the link above does not work, please look for the bookstore link on the home page
If you have any questions or need help finding a particular video, tract, book or any other Christian resource in any language of the world, please contact brianformissions@gmail.com