* [http://www.saintpeterorthodox.org/Mass.htm Text of the Liturgy of Saint Tikhon]
* [http://www.orthodoxresurgence.co.uk/Petroc/sarum.htm Text of the Sarum Rite Liturgy] as corrected for use within [[ROCOR]] by His Eminence Archbishop Hilarion
===Book===
* ''[Children of the Promise: An Introduction to Western Rite Orthodoxy http://www.authorhouse.com/BookStore/ItemDetail.aspx?bookid=23809], by Fr. Michael Keiser
===Introduction and History===