  We present here a relationship among massive self-dual models for spin-3
particles in $D=2+1$ via the Noether Gauge Embedment $(NGE)$ procedure.
Starting with a first order model (in derivatives) $S_{SD(1)}$ we have obtained
a sequence of four self-dual models $S_{SD(i)}$ where $i=1,2,3,4$. We
demonstrate that the $NGE$ procedure generate the correct action for the
auxiliary fields automatically. We obtain the whole action for the $4th$ order
self-dual model including all the needed auxiliary fields to get rid of the
ghosts of the theory.
