by Prof. J. Suprapto, M.A. APU $11.00
by Drs. Sudarso $7.00
by Drs. Bayu Surianingrat $7.00
by Bambang Agus Murtidjo $6.00
by Prof. Dr. Suharsimi Arikunto $13.00
by Don W.S., Threes Emir, dan Cherry H $7.00
by Michael P. Todaro $16.00
by Agus Setiawan $12.00
by Sisca Susanto $6.00
by dr. Titi Lestari Sugito, SpKK(K) $6.00