Columbia subject headings:
Bhutan--History--Sources.
Tibetan language--Texts.
ʼBrug-pa (Sect)--Bhutan--History.
Harvard subject headings:
Bhutan--History--Sources.
Tibetan language--Texts.
ʼBrug-pa (Sect)--Bhutan--History.
Princeton subject headings:
Bhutan--History--Sources.
Tibetan language--Texts.
ʾBrug-pa (Sect)--Bhutan--History.