Get the ground ready BEFORE you bring in the grass, unless it is a very small land you can make it quickly.
There are lots of work to do before you lay down the turf, the hardest part is leveling, and then spray some chemical fertilizer (我在bunnings买了一包,用了大概1/3,你如果想要又离我家近的话可以过来拿,不用给钱了),water the surface of the ground, then lay down the turf, make sure immediately water the lawn after you finish.
Guys, sorry for the late reply, as too busy to switch on my computer these days.
We don't exactly know the turf were from which farm, our grass type is WINTER GREEN, we just rang up phones and asked them to deliver, of course you can pick up or ask someone else do it for you. (We did it together with our neighbour)