Hi oduodu
Lots of good advice for you

Living in Aliwal North may just be a brownie point for you. Your municipal public library may not yet have been raided by destructive types looking for Hi-Fi books to pulp, like what happened here and is probably still happening. Sticking my head in a rat's nest, old audio mags from the mid 50's until the 90's primarily for diy, lay constructors. The city libraries was my first source of knowledge. Then I started subscribing to audio mags, which are also available free from libraries. Enquire at you local library. Those who work there will help with pleasure. Even if they have to get you 'reads' from PE.
As your knowledge grows, you will be able to recognise book titles and author's names which will be useful to you. Here in Cape Town, I frequent a secondhand bookshop called CAFDA. At this place, I have acquired anything from piles of old audio mags and audio yearbooks from the UK to a small personal library of my own, totalling about 40 or 50 books by especially English authors, written during the 'golden age' from when stereo started.
One problem I have encountered: It is extremely difficult to make 2nd hand bookshop owners or librarians understand exactly what literature it is you're interested in as it is such a technical subject.
For most of the 'desperate times' I needed to have knowledge of what I wanted to do, I didn't own a computer. Once I sorted this problem, my sources of audio knowledge increased a hundredfold. Make google your friend. Try fooling around. Just type "famous hi-fi writers" or "vintage audio books" and see what comes up (I haven't tried this, btw).
Good luck in your quest. The fact that you asked, counts for a lot already.
mafioso