Eco, Umberto
The search for the perfect language
Fontana, 1997
 Buku Teks SO
Second language learnr's access to parameters of universal grammar: a syntactic perspective
 Artikel Jurnal
Sallata, Hans Giovanny Yosua
Pengaturan Yurisdiksi Universal dalam Hukum Pidana Indonesia = Universal Jurisdiction in Indonesian Criminal Law
Fakultas Hukum Universitas Indonesia, 2023
 UI - Tesis Membership
The universal dictionary of the English language
edited by Henry Cecil
George Routledge & Sons, 1946
 Buku Referensi
Lyons, John
Natural language and universal grammar
Cambridge University Press, 1991
 eBooks