Cosgrove, John J.
Australian government : its history and how it works
Longman, 1988
Buku Teks
Lieberman, Norman P.
A working guide to process equipment : how process equipment works
McGraw-Hill, 1997
Buku Referensi
The perceptions of Northeast Asia's four states on Korean unification / Bae, Jung-Ho, Park, Young-Ho, Park, Jae-Jeok, Kim, Dongsoo, Kim, Jangho
Korea Institute for National Unification, 2014
Buku Teks
Patman, Wright, 1893-1976
Our American government : the answers to 1001 questions on how it works
Bantam Books, 1957
Buku Teks
The Korean alphabet : its history and structure / edited by Young-Key Kim-Renaud
University of Hawai'i Press, 1997
Buku Teks