by Ir. Hatta Sunanta, B.Sc., MS $5.00
by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk $7.00
by $16.00
by Agung Kristiawan $9.00
by Hagen Berndt $7.00
by Ir. Dedy Heryadi Sutisna, MS & Ratno Sutarmanto $6.00