by Prof. Dr. Andi Hamzah, S.H. $11.00
by Ramlan Ginting $8.00
by Kerry Phillips Carson $7.00
by M. Yahya Harahap, S. H. $20.00
by Leden Marpaung, S. H. $7.00
by Drs. H. M. Yusran Asmuni $6.00
by Abdul Mujib $12.00
by Katzung $26.00
by Aziz Alimul $9.00