by WK $12.00
by S. Soegijanto $11.00
by WK $13.00
by Tierney $18.00
by Ariesto Hadi $16.00
by Ir. Hieronymus Budi Santoso $5.00
by Prof. Dr. Hj. Sutyastie Soemitro Remi & Prof. Dr. P. Tjiptoherjanto $7.00
by Koestoer, Raldi Hendro $7.00
by Prof. Dr. H. Harsuki, M.A $12.00
by Haryoto $5.00
by Dr. A. Supratiknya $6.00
by Suhardjo $7.00