The theory of machines and mechanisms: proceedings of the 7th world congress, 17-22 September 1987, Sevilla, Spain
editor, Emilio Bautista, Javier Garcia-Lomas, Alfredo Navarro
Pergamon Press, 987
 Buku Referensi
The theory of machines and mechanisms: proceedings of the 7th world congress, 17-22 September 1987, Sevilla, Spain
editor, Emilio Bautista, Javier Garcia-Lomas, Alfredo Navarro
Pergamon Press, 1987
 Buku Referensi
The theory of machines and mechanisms: proceedings of the 7th world congress, 17-22 September 1987, Sevilla, Spain; Vol. II
editor, Emilio Bautista, Javier Garcia-Lomas, Alfredo Navarro
Pergamon Press, 1987
 Buku Referensi
Australia votes : the 1987 federal election / edited by Ian McAllister and John Warhurst
Longman Chesire, 1988
 Buku Teks SO
Kudryavtzev, Vladimir
The 24th congress of the CPSU and the struggle for peace / Vladimir Kudryavtzev
Navosti Press, 1972
 Buku Teks SO