[1]
نور الدين خليل (2008). قاموس الأديان الكبرى الثلاثة: اليهودية والمسيحية والإسلامية (بالعربية والإنجليزية). مراجعة: محمود آدم. الإسكندرية: مؤسسة حورس الدولية للطباعة والنشر. ص. 104. ISBN:978-977-368-087-9. OCLC:166560426. OL:45068455M. QID:Q125055340.
[2]
"breviary" (بالإنجليزية). ميريام وبستر. Archived from the original on 2023-10-25. Retrieved 2022-02-07. : a book of the prayers, hymns, psalms, and readings for the canonical hours
[3]
Palazzo، Eric (1998). A History of Liturgical Books from the Beginning to the Thirteenth Century. Liturgical Press. ص. 169. ISBN:9780814661673. It is the Franciscan breviary deriving from the second rule of the order approved by Innocent III in 1223 that for the first time expressly bears the name breviarium: Clerici facient divinum offocoum secundum ordinem sanctae Romanae Ecclesia excepto Psalterio, ex quo habere poterunt breviaria ["The clerics will celebrate the Office according to the ordo of the holy Roman Church, except for the psalter which they may use in shortened forms"].

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