TVXQ
TVXQ. [7th album]. Tense
S.M Entertaiment, 2014
 Multimedia
TVXQ. [7th album]. Tense
SM Entertainment, 2014
 Buku Teks
TVXQ
Tense Tvxq! 10th Anniversary
S.M Entertaiment, 2014
 Multimedia
Hornstein, Norbert
As times goes by tense and universal grammar
MIT Press, 1990
 Buku Teks
Koehn, Edward Henry
The historical tense in Apalai narrative / Edward Henry Koehn
Summer Institute of Linguistics, [date of publication not identified]
 Buku Teks