by Chris Welch & Geoff Nicholls $18.00
by Robert Christi Mill $13.00
by Prof. Dr. Loekman Soetrisno $6.00
by - $30.00
by Gunawan Widjaja, A. Yani $7.00
by M. Ali Hasan $5.00
by Prof. Mr. Dr. Sudargo Gautama $6.00
by Maurice Duverger $7.00
by Prof. Dr. Suharsimi Arikunto $9.00
by $6.00
by Redaksi (Penghimpun) $6.00
by Prof. dr. H. Sidarta Ilyas, SpM $9.00