by Jack Canfield, dkk $11.00
by Dr. Madan Kataria $12.00
by WK $13.00
by Erna Hartanto, S.Kom $5.00
by $4.00
by Prof. Dr. Soekanto $5.00
by Prof. Mr. Dr. Sudargo Gautama $5.00
by J.A.F. Stoner $11.00
by Sutherland Lyall $31.00
by $7.00
by Aziz Alimul $7.00
by - $7.00
