Mijo Kovačić has works found in the capital city of Croatia, near what river?
Mijo Kovačić:  His works can be found at the Croatian Museum of Naïve Art in Zagreb. Zagreb: Zagreb (] ) is the capital and the largest city of Croatia. Zagreb:  It is located in the northwest of the country, along the Sava river, at the southern slopes of the Medvednica mountain.
Sava