The UCC prefix is malformed (should be 978 or 979).
The check-digit is correct.
2020
Skopje
Softcover
248 pgs.
literatura.mk lists ISBN as the mal-formed one. It is undoubtedly a mistake, however, it is kind of a deep mistake because the check digit (3) was calculated correctly using 948-608-289-755. Assuming 978-608-289-755 is correct, the right check digit is 4 (978-608-289-755-4).
2024-12-09: Found the correct ISBN: 978-608-259-755-3; removing the incorrect, corrected on, but will leave the mistaken one for record keeping purposes
It's not exactly clear what is up with the edition numbers... they are in the bibliographic records and they seem to maybe correspond with the Imprints rather than the publisher? They seem to alternate between Ars Lamina and Libi, both of which are imprints of Ars Lamina.