Look in the 2008 Edotion of AWC SDPWS-2008. For Wood Framed Diaphragms it is found under footnote 2 of Table 4.2A on page 18. For Wood Framed Shearwalls it is footnote 2 of Table 4.3A on 31.
The specific gravities of various wood species is found in NDS-2012, Table 11.3.3A on page 81.