by Suryohadiprojo, Sayidiman $7.00
by Ahmad Bahrudin $9.00
by $16.00
by Cotton, F. Albert & Geoffrey Wilkinson $11.00
by Prof. Dr. H. Jalaluddin $7.00
by American Asociation of State Highway and Transportation Officials $9.00
by Toemin, A. Masoem $5.00