Moule Veni Creati
Moule Veni Creati is a well know (in past times) work on the Holy Spirit by H.G. C. Moule, (Anglican). It is a deep treatment of the Holy Spirit.
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Strong Systematic Theology is a detailed and extensive Systematic Theology. It might be too complicated for the average Christian. Has a lot of reference notes to other works on various points of Bible doctrine.
This work is only in theWord format at the moment.
Download: Strong Systematic Theology (for theWord).