The Indo-European Languages / edited by Anna Giacalone Ramat and Paolo Ramat
Routledge, 1998
 Buku Teks SO
Haider, Hubert
Verb second phenomena in Germanic
Foris Publications, 1986
 Buku Teks
Amelia Shinta Larasati
Ciri Budaya Indo: Analisis Semiotika Roland Barthes pada Meme Indo's Be Like = Characteristics of Indo Culture: Roland Barthes' Semiotic Analysis of "Indo's be Like" Memes
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2019
 UI - Tugas Akhir
Morpheme order and semantic scope : word formation in the Athapaskan verb / Keren Rice
Cambridge University Press, 2000
 eBooks
Fick, August
Vergleichendes worterbuch der Indogermanischen sprachen
Vandenhoeck & Ruprecht, 1909
 Buku Referensi