what are there in invitation card?

apa yang ada di dalam kartu undangan?

- Name of sender and receiver (if it's an invitation to a family, family names are usually used, but it's different if it's only for a specific individual like a birthday invitation)
-Date of the annual event
- Venue in details, example: In mall XXX on X floor in X ballroom( the place where it is held in) , or to make it simpler, the address of the event. 
- Time of the event