by Hussein Muhammad Yusuf $6.00
by Sei H. Dt. Tombak Alam $6.00
by Hasan Hanafi $7.00
by Abdullah Ahmad Aasyur $6.00
by Barda Nawawi Arief $7.00
by Dr. Ir. M\'Imadduddin Abdul Rahim, M.Sc $6.00
by Drs. Djalinus Syah., dkk $9.00
by Dr. G. Kartasapoetra dan H. Marsetyo $7.00
by Drs. Thomas Suyatno, dkk $9.00
by Yudo Sudarto, SP $5.00
by I. Bambang Sugiharto & Agus Rachmat W $11.00
by - $9.00