TVXQ. [7th album]. Tense
SM Entertainment, 2014
 Buku Teks
Hornstein, Norbert
As times goes by tense and universal grammar
MIT Press, 1990
 Buku Teks
Tense past: cultural essays in trauma and memory
edited by Paul Antze and Michael Lambek
Routledge, 1996
 Buku Teks SO
Poutsma, H.
Mood and tense of the English verb / H. Poutsma
P. Noordhoff, 1922
 Buku Teks SO
Koehn, Edward Henry
The historical tense in Apalai narrative / Edward Henry Koehn
Summer Institute of Linguistics, [date of publication not identified]
 Buku Teks SO