Since I am not limited to the resources of a single religious order, I have borrowed material from many sources, the main ones being:

-the 4 volumes of the Antiphonarium Pro Liturgia Horarum of the Preachers Order (internet download) which constituted the basis on which I built this work in the beginning before taking more independence from it. I owe these breviaries the basic profile of my work as well as many other features, like having on Sundays, in morning and evening prayer II, different Canticles antiphons for the 3 liturgical years  A,B and C.

-the 5 volumes of the Liturgy of Hours according to the Roman Rite with and English translation by International Committee on English in the Liturgy. (Catholic Book Publishing Corp.)

- the Liber Ususalis (internet download)

- the Liber Hymnarius for the latin hymns of the Breviary (internet download)

-the liturgies.net site which contain a section similar to the above mentioned Liturgy of Hours.

-divinumofficium.com that was helpful for the traditional Offices.

-the Sarum rite breviaries which offer offices that are from medieval times before all the reforms of the Catholic Church. (internet download)

These were the main sources I used and I apologize if I have omitted to mention one.