by Murad Lesmana, Jeanette $5.00
by American Asociation of State Highway and Transportation Officials $9.00
by $6.00
by Hines, William W.K. Dougles E. Montgomery $11.00
by Dr. Ir. Akhmad Fauzi, M.Sc. & Dr. Dra. Suzy Anna, M.Si $12.00
by Denny J. A $6.00