by Ir. H. Rahmat Rukmana $5.00
by Luthfi Bashori $9.00
by Komkat KAS $6.00
by Memed Humaedillah $5.00
by Dr. K.H. Didin Hafidhuddin, M.Sc $7.00
by Ir. Budi Samadi & Ir. Bambang Cahyono $7.00