Subjects and universal grammar : an explanatory theory / Yehuda N. Falk
Cambridge University Press, 2006
 eBooks
Valin, Robert D. van
Syntax : structure, meaning, and function
Cambridge University Press, 2004
 eBooks
Sportiche, Dominique
Partitions and atoms of clause structure : subjects, agreement, case and clitics / Dominique Sportiche
Routledge, 1998
 Buku Teks SO
Gelderen, Elly van
Clause structure
Cambridge University Press, 2013
 Buku Teks
Fern, Edward F.
Advanced focus group research
Sage, 2001
 Buku Teks SO