Mahābhūta
Thanissaro Bhikkhu (trans.) (1994). "SN 27.9: Dhatu Sutta – Properties" in Upakkilesa Samyutta: Defilements (SN 27.1–10). Retrieved 2008-03-17 from "Access to Insight" at http://www.accesstoinsight.org/tipitaka/sn/sn27/sn27.001-010.than.html#sn27.009.