by Dra. Zuhairini, dkk $9.00
by Ir. A. G. Kartasapoetra $6.00
by Robert Heilbronner $6.00
by Yayasan Perspektif Baru $18.00
by Drs. G. Kartasapoetra $9.00
by Dra. Ninik Widiyanti $12.00
by $13.00
by Geoffrey Parrinder $11.00
by Dra. L. Simanjuntak $7.00
by Djokosetyardjo $0.00
by dr. Boyke Dian Nugraha $7.00
by M.B. Iman Santoso, S.Ag. $6.00