I am writing a related paper to find its elastic modulus and Poisson's ratio. The three you want are here,

Unit of dielectric constant matrix: (*10-9) f/m.

1 1.42 0 0

0 1 1.42 0

0 0 1 1.42

Piezoelectric constant unit: (*10-12) c/n.

d3 1 -90 d32 -90

d33 225

d 16 330 d25 330

Flexibility constant unit: 10 10n/m 2.

s 1 1 1 1.5s 12-3.7s 13-4.8

s33 13.5 s44 3 1.9 s66 3 1.4