You can imagine an endless amount of different ways to indicate that a specific field is required, or you can turn the tables around and indicate that a field is optional. There generally is 3 popular ways of doing this: Asterisk next to either label or field marking the field as required: Yahoo. IBM.
Where is Serbia located on the world map? The given Serbia location map shows that Serbia is located in the central-south part of Europe continent.he given Serbia location map shows that Serbia is located in the central-south part of Europe continent.
Where is Serbia located? Serbian is located in south Europe on the Balkan peninsula! When was Serbia established?   Serbia was formed as a medieval duchy of the Byzantine Empire in early 700s by the descendants of the Unknown Archont, who led the Serbs to the Balkans from East Centralâ¦ Europe several decades before.