The 2002 International conference on opto-electronics and laser applications
University Indonesia, 2003
 Multimedia
Proceedings of the First International Conference on Theoretical, Applied and Experimental Mechanics
Springer Cham, 2019
 eBooks
Proceedings of the 2nd International Conference on data engineering and communication technology: ICDECT 2017
Springer Singapore, 2019
 eBooks
Sources of international uniform law = Sources du droit uniforme international = Quellen des internationalen einheitsrechts
edited by Konrad Zweigert and Jan Kropholler
A.W. Sijthoff, [Date of publication not identified]
 Buku Teks SO
Bos, Maarten
De Procesvoorwaarden in het volkenrecht : les conditions du proces en droit international public
Morks Drunnerij en Uitgeverij, 1951
 Buku Teks