by R.W. Old dan S.B. Primrose $16.00
by Steven Dowsen, dkk $13.00
by Drs. Mulyono HAM, M.Pd $11.00
by Reeves $13.00
by Aziz Alimul $0.00
by Chung Su Hoo & Ng Gek Lan $5.00
by FK3 $7.00
by P. Efrem Zuba, CSsR. $3.00
by Tanenbaum $16.00
by dr. Herman Cipto, SpKK(K) $6.00
by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ $7.00
by BEBY HARYANTI DEWI $7.00