Highway and traffic engineering in developing countries / edited Bent Thagesen
E & FN spon, 1996
 Buku Teks SO
Childbirth in developing countries / edited by M. potts
MTP Press, 1983
 Buku Teks SO
Industrial systems engineering and management in developing countries
edited by Mario T. Tabucanon and Pakorn Adulbhan
Pergamon, 1981
 Buku Teks SO
Wright, Paul H.
Highway engineering
John Wiley & Sons, 2004
 Buku Teks SO
Singh, Gurcharn
Highway engineering
Standard Publishers Distributors, 1978
 Buku Teks SO