Code:
 
sx 0 0 0
0 sy 0 0
0 0 sz 0
x y z 1

x,y,z = World coordinate
sx,sy,sz = Coordinate scaling

Rotation:
X Rotation modifies fields 22 (sy),23,32,33 (sz) :
Code:
 
sx 0 0 0
0 cos(angle) sin(angle) 0
0 -sing(angle) cos(angle) 0
x y z 1