Cambridge University Press, 2019
eBooks
Dik, Simon Cornelis
Foris, 1989
Buku Teks SO
Indonesian Linguistics Society, 2012
Majalah, Jurnal, Buletin
edited by Harriet Luria, Deborah M. Seymour, Trudy Smoke
LEA, 2006
Buku Teks SO
Bussmann, Hadumod
Routledge, 1996
Buku Referensi