ruler
A ruler, sometimes called a rule, scale, line gauge, or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. Usually, the instr ...
') is a set of ordinances and regulations made by ecclesiastical authority (church leadership) for the government of a Christian organization or church and its members.
Canon law includes the internal
* Baker, J.H. ''An Introduction to English Legal History'', 4th edn. London: Butterworths, 2002.
* Beal, John P., James A. Coriden, & Thomas J. Green. ''New Commentary on the Code of Canon Law''. New York: Paulist Press, 2000.
* Brundage, James A. ''The Medieval Origins of the Legal Profession: Canonists, Civilians, and Courts''. Chicago: University of Chicago Press, c2008.
* Brundage, James A. ''Medieval Canon Law''. London/New York: Longman, 1995.
* Coriden, James A. ''An Introduction to Canon Law'', 3rd edn., revised & updated. New York: Paulist Press, 2019.
* Coriden, James A., Thomas J. Green, & Donald E. Heintschel, eds. ''The Code of Canon Law: A Text and Commentary''. New York: Paulist Press, 1985.
* Coughlin, John J., O.F.M. ''Canon Law: A Comparative Study with Anglo-American Legal Theory''. Oxford: Oxford University Press, 2010.
* Della Rocca, Fernando. ''Manual of Canon Law''. Trans. by Rev. Anselm Thatcher, O.S.B. Milwaukee: The Bruce Publishing Company, 1959.
* The Episcopal Church. Constitution and Canons together with the Rules of Order for the Government of the Protestant Episcopal Church in the United States of America, otherwise known as The Episcopal Church''. New York: Church Publishing, Inc., 2006.
* Hartmann, Wilfried & Kenneth Pennington, eds. ''The History of Medieval Canon Law in the Classical Period, 1140-1234: From Gratian to the Decretals of Pope Gregory IX''. Washington, D.C.: The Catholic University of America Press, 2008.
*Hartmann, Wilfried & Kenneth Penningon, eds. ''The History of Byzantine and Eastern Canon Law to 1500''. Washington, D.C.: The Catholic University of America Press, 2011.
* R. C. Mortimer. ''Western Canon Law''. London: A. and C. Black, 1953.
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* Robinson, O.F., T.D. Fergus, & W.M. Gordon. ''European Legal History'', 3rd edn. London: Butterworths, 2000.
* Ulanov, M. S., Badmaev, V. N., Holland, E. C. Buddhism and Kalmyk Secular Law in the Seventeenth to Nineteenth Centuries. ''Inner Asia.'' no. 19. P. 297–314.
* Wagschal, David. ''Law and Legality in the Greek East: The Byzantine Canonical Tradition, 381–883''. Oxford: Oxford University Press, 2015.
* Witte, John Jr. & Frank S. Alexander, eds. ''Christianity and Law: An Introduction''. Cambridge: Cambridge University Press, 2008.
* On Armenian Oriental canon law.