*[http://www.smart.net/%7Emmontes/ortheast.html The Orthodox Ecclesiastical Calendar]
*[http://www.christian-egypt.com/CopticCalendar.htm Ancient Egyptian Calendar and Coptic Calendar by Andrew Fanous]
*[http://www.wdl.org/en/item/2842 "Seasonal Almanac Based on the Coptic Calendar"] is an Arabic manuscript from 1678.{{Waktu-stub}}[[Kategori:Kalender]]
