Hutagalung, Mangasa Sotarduga, author
Tulodong, 2007
Buku Teks
Hutagalung, Mangasa Sotarduga, author
Tulodong, 2007
Buku Teks
Schumann, Walter, author
Sterling, 1997
Buku Referensi
Ronaldo Heinrich Herman, author
Fakultas Hukum Universitas Indonesia, 2023
UI - Tesis (Membership)
Watson, Roger, author
EGC , 2003
Buku Teks