by Jatna Supriatna $40.00
by Ir. Mul Muyani Sutedjo $7.00
by Murad Lesmana, Jeanette $5.00
by Ir. Moehar Daniel, M.S & Ir. Darmawati, M.Sc & Ir. Nieldalina, M.Si $7.00
by Penny, D.H. $6.00
by Ir. H. Rahmat Rukmana & Hj. Yuyun Yuniarsih, SP., MBA., MM. $6.00
by Moch. Faisal Salam, SH., MH. $10.00
by Drs. Bambang S., dkk $9.00