Columbia subject headings:
Harvard subject headings:
Christian saints--Bulgaria--Biography.
Ivan, Rilski, Saint, approximately 876-946--Sources.
Orthodox Eastern Church--Bulgaria.
Rila (Bulgaria)
Rilski manastir.
Princeton subject headings:
Bŭlgarska pravoslavna t︠s︡ŭrkva--Biography.
Christian saints--Bulgaria--Biography.
Ivan, Rilski, Saint, approximately 876-946.