by Aziz Alimul $11.00
by Purwohudojo. S $5.00
by Allan E.H. Enery $6.00
by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ $6.00
by dr. Hartono G., dr. Badriul H., dr. Hanifah O. $9.00
by Prof. Dr. A. Bari Saifuddin, MPH $6.00