by Prof. drh. Charles Rangga Tabbu, M.Sc., Ph.D $18.00
by Drs. Al. Soenarto S.W., dkk $4.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by Ir. Bambang Cahyono $6.00
by Drs. D. Hendropuspito, O. C. $7.00
by Ir. Hatta Sunanta, B.Sc., MS $6.00
by Ronny Sautma Hotma Bako, S.H., M.H. $3.00
by Lance Castles $7.00
by Drs. H. Inu Kencana Syafiie, M.Si $9.00
by Hazrat Inayat Khan $6.00
by - $6.00
by - $12.00