by Dr. Ir. H.S. Farid Ruskanda, M.Sc. A.P.U. $5.00
by Mel Levina, M.D. $13.00
by $4.00
by Dr. M. Na'im Yasien $7.00
by Drs. K.H. Toto Tasmara $9.00
by Prof. Dr. Akram Dhiyauddin Umari $6.00