by Thabrani, Rinaldi $12.00
by Prof. dr. Sarwono Waspadji, Prof. dr. Slamet Suyono $5.00
by WK $11.00
by Aziz Alimul $9.00
by dr. Samsuridjal Djauzi $7.00
by WK $12.00
by Kartadjoemena, H.S $9.00
by Dr. Ir. M.M. Sri Setyati Harjadi $7.00