by Iwan T. Budiarso $7.00
by dr. Tonny Loho, SpKK(K), DMM $6.00
by Ir. Nur Tjahjadi $5.00
by Ir. Bambang Cahyono $6.00
by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ $6.00
by Drs. Wishnubroto Widarso $5.00