by Syaiful F. Prihadi $11.00
by Tjiptoadinugroho $6.00
by Yusuf Mansur $3.65
by Anshori Djausal & Khaidir $6.00
by Ir. Kaslan A. Tohir $12.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00