National Defence University, 1983
Buku Teks
Pakpahan, Victoria M., author
The Ary Suta Center, 2018
Artikel Jurnal
The Ary Suta Center, 2018
Artikel Jurnal
Greenstein, Marilyn, author
McGraw-Hill, 2000
Buku Teks
Moehamad Rihal, author
Fakultas Teknik Universitas Indonesia, 2010
UI - Skripsi (Open)