@Siswandi0 if you are renting out the 3 rooms separately to different guests then you will need to have 3 separate listings, one for each room. They can't all be on the same listing because as soon as the first booking comes in all the rooms will be blocked out.
If at any stage you want to rent out all 3 rooms together then you would need to have a 4th listing for this and carefully coordinate your bookings so that you don't get double-booked - and turn Instant Book off.