by Ir. H. Rahmat Rukmana $6.00
by Ir. Pracaya $6.00
by Muljana, B.S $9.00
by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk $11.00
by Djoehana Setyamidjaja, M.Ed $6.00
by Khopkar. S.M $7.00