With help from Mr Wiki and En Wiki, this is what I found:
1. Daun Saderi = Daun Sup = Celery = Apium graveolens
Celery leaves and stalks
Celery Plant
2. Daun ketumbar = Coriander Leaves = Chinese Parsley = Cilantro = Coriandrum sativum
Coriander leaves
3. Parsley = Petroselinum crispum
Two main parsley groups used as herbs are:
a) Curly leaf = P.Crispum Crispum Group
Curly leaf parsley plant
b) Italian = Flat leaf = P. Crispum Neapolitanum Group
Italian or Flat leaf parsley