I don't know any, but i heard about it... alot.
Try to not include national policies as propaganda.(i.e. the media is controlled to not have any nudity on national TV. national policy, not propaganda)
With the list of propaganda identified, i am sure opposition of PAP will be able to fight a good battle at the polls.
Anything that comes out from PAP people is PAP propaganda.
Anything that comes out from SDP people is SDP propaganda.
Simple.
PAP propaganda:
wah, as if the oppo dunno about this yet.