by Dr. Tony Setiabudi, Ph.D., Dr. Hardywinoto, SKM $9.00
by Aziz Alimul $7.00
by Sastrodiwirjo, Soemargo, dkk $5.00
by Dr. Rossi Sanusi Ph.D $7.00
by Syaifuddin $12.00
by Vitahealth $9.00