by Dr. Ibrahim Madkour $11.00
by H. Rahmat Rukmana $6.00
by $9.00
by Ir. Budi Samadi $6.00
by Dr. Zakiah Daradjat, dkk $11.00
by Peter H. Lindert $26.00
by Zainun Kamal $9.00
by Aziz Alimul $9.00
by Anton Gerbono & Abbas Siregar Djarijah $6.00