Tham khảo Copán

  1. ↑ Martin & Grube 2000, p.209.
  2. 1 2 3 Sharer & Traxler 2006, p.339.
  3. ↑ Adam Risius 1999.
  4. ↑ Sharer & Traxler 2006, pp.339, 476.
  5. ↑ Martin & Grube 60012, pp.203–205. Looper 2003, p.76. Miller 1999, pp.134–35.
  6. ↑ Martin & Grube 2000, pp.206–207.
  7. ↑ Stuart 1996.
  8. ↑ Stuart and Houston 1994, pp. 23, 25.