by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ $6.00
by Bambang Agus Murtidjo $6.00
by Drs. Agus M. Hardjana, M.Sc., Ed $3.00
by Ir. H. Rahmat Rukmana $5.00
by Emanuel Wora $7.00
by Rosetta Reizt $11.00