Puhvel, Jaan
Laryngeals and the Indo-European verb / Jaan Puhvel
University of California Press, 1960
 Buku Klasik
Haider, Hubert
Verb second phenomena in Germanic
Foris Publications, 1986
 Buku Teks
Verhagen, Arie
Linguistic theory and the function of word order in dutch
Foris Publications, 1986
 Buku Teks
Arnold, Barry C.
A first course in order statistics
Society for Industrial and Applied Mathematics, 2008
 eBooks
Keputusan pendanaan : pendekatan trade - off theory dan pecking order theory
 Artikel Jurnal