by Nursalam $12.00
by Dr. G. Kartasapoetra dan H. Marsetyo $7.00
by Prof. dr. Sjaiful Fahmi Daili, SpKK(K) $11.00
by D'Hiru $18.00
by Herry Sofiandy Halim $10.00
by Prof. dr. D. Bachtiar Lubis, dr. Sylvia D. Elvira $7.00