Melinda Gates
Bentang Pustaka, 2019
Buku Teks SO
Buku Teks
Schaefer, Richard T
McGraw-Hill, Higher Education, 2009
Buku Teks SO
edited by Ivan A. Sag and Anna Szabolcsi
Center for the Study of Language and Information, 1992
Buku Teks SO
Hummelen, W.M.H
Dick Coutinho, 1989
Buku Teks