Situmeang, John B., author
The Ary Suta Center, 2023
Artikel Jurnal
Kimball, John W., author
Erlangga, 1991
Buku Teks
Helaine Selin
Springer Science, 2012
eBooks
Compton, William C., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Fu, Jin, author
China Intercontinental Press, 2010
Buku Teks