Sets of Faces of the Rhombic Dodecahedron and the Triacontahedron
This Demonstration shows various sets of the faces of the rhombic dodecahedron or the triacontahedron. A set consists of four or six faces that are either parallel or perpendicular to one another.
 G. Kowalewski and D. Booth, "Construction Games with Kepler's Solid," Austin, TX: Parker Courtney Press, 2001. (Jul 16, 2019) www.zometool.com/content/KowalewskiWeb.pdf.
 J. Kepler, Harmonices Mundi, 1619. (Jul 31, 2019) archive.org/details/ioanniskepplerih00kepl/page/n79.