by Drs. Save M. Dagun $9.00
by Thabrani, Seno Adjie $11.00
by $9.00
by F. Suryatmo $9.00
by J.H. Tarumetor Tairas $9.00
by Drs. Abdul Chaer $11.00
by Prof. Dr. Syahrin Harahap MA (Ed) $6.00
by Darmono $6.00
by Frans H. Winarta (Kata Pengantar) $11.00
by Arifin Suryo Nugroho $4.32