I don't think the books that you mention are very technical.
You mention Prein, but I suspect you mean
Jochen Prien & Peter Rodeicke, however even that book I would not really call technical either.
What exactly do you mean by "technical" and what exactly are you looking for?
Really technical books, or manuals, on the Bf 109 are usually in German. Several manuals can be found on this forum.
If you're not familiar with German language then your choice is limited.
You can find some technical details in books aimed at modellers, for example from '
Valiant Wings' (by Richard Franks) or '
Mushroom Model Publications' (by Robert Peczkowski) or '
SAM Publications' (by Lynn Ritger). '
Walk Around' booklets from '
Squadron Signal Publications' may also be of interest to you.
A new Bf 109 book by Lynn Ritger will be available sometime next year: