by Ir. Yushinta Fujaya, M.Si $7.00
by M. Ghufron H. Kordi K $9.00
by Poedjiadi, Anna $11.00
by Ir. Hatta Sunanta, B.Sc., MS $6.00
by $16.00
by Swasono, Sri-Edi $7.00
by Ressang, A.A $6.00
by Rumah Sakit Persahabatan $7.00