by Ir. Jumar $9.00
by Dra. L. Simanjuntak $7.00
by George A.M. Farland $9.00
by Gunawan Widjaja, A. Yani $7.00
by M. Idris Ramulyo, S.H., M.H. $9.00
by Ir. Sarjoni Basri $12.00
by Al-Fath & Annisa $9.00