by Tierney $12.00
by dr. Clifford Rose & dr. Paul Davies $6.00
by Katzung $30.00
by Prof. dr. A.J. Hukom $5.00
by Aziz Alimul $9.00
by Prof. Dr. Ir. Ali Khomsan $9.00
by Drs. M. Sastrapratedja $11.00