Without trying to sound too condescending, If you need a link to show you how to replace your plugs you shouldnt be doing them yourself.
If you use the incorrect tool, you can easily snap the ceramic, Can easily be crossthreaded or left too loose.
However if you need to do them yourself, you'll need a screwdriver to remove the engine cover.
10mm socket to remove the vac chamber over no'4 coil.
and a 14mm plug socket with an extension bar.. roughly 12". The rest is pretty straight forward.