Hugo's Latin simplified : an easy and rapid self-instructor
David McKay Company, [date of publication not identified]
 Buku Teks SO
Amin Singgih
Learning bahasa Idonesia without teacher : belajar bahasa Indonesia tanpa guru
Erlangga , 1993
 Buku Teks SO
Hartley, Paul
The Routledge Intensive German Course
Companion Website, 2006
 Buku Teks SO
Ratttiya Saleh
Panji thai : dalam perbandingan dengan cerita-cerita pani melayu
Dewan Bahasa dan Pustaka, 1988
 Buku Teks SO
Thaneerat Jatuthasri
The signification of the inao during the reign of king chulalongkorn: A transitional period in the thai panji tradition
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2020
 Artikel Jurnal