I have heard that the best version of the Bible and New Testament in Slovak is the Roháček version.
Amazon - Slovak New Testament / Pismo Nova zmulva / and Hungarian New Testament in Mirror Translation
https://www.amazon.com/Slovak-Testament-zmulva-Hungarian-translation/dp/9633007658
This is a Slovak-Hungarian New Testament Bible.
Bible In My Language
http://bibleinmylanguage.com/european-bibles/slovakian/
BIML is selling many printed Slovak Bibles on their website.
Bible Society - Slovakian Bible
https://www.biblesociety.org.uk/products/9788071403388/
https://www.biblesociety.org.uk
This Slovakian Bible uses the traditional Lutheran translation.
Canadian Bible Society
http://www.biblescanada.com/catalog/1665.htm
The CBS has three Slovak Bibles available for sale on their website.
Ethnic Harvest
http://www.ethnicharvest.org/bibles/slovak.htm
Ethnic Harvest has a page of links where you can read the Slovak Bible.
Multi-Language Media
http://www.multilanguage.com/scripture4.htm
The Slovak Bible is available on the website of Multi-Language Media.
Slovak Bible Society
http://www.biblickaspolocnost.sk
You can purchase the Slovak Bible at Slovak Bible Society.
World Bibles
The World Bibles site helps you to find Bibles in over 4,000 languages including Slovak.
