Esser, J.
Narr, 1981
Buku Teks SO
edited by Jacques Durand
Departement of Language and Linguistics University of Essex, 1983
Buku Teks SO
Pike, Kenneth Lee, 1912-2000
Mouton, 1972
Buku Teks SO
edited by Henning Bordihn, Martin Kutrib and Bianca Truthe
Springer-Verlag, 2012
eBooks
Diana Santos, editor
[, Springer-Verlag], 2012
eBooks