Shields, James J,Jr
Frederick A. Preager, 1967
Buku Teks
Paterson, Robert G. (Robert Gildersleeve), author
McGraw-Hill, 1950
Buku Teks
edited by Harold J. Burbach
Pendell, 1977
Buku Teks
Yugo Diandhika, author
2015
UI - Tesis (Membership)
Artikel Jurnal