by Santoso, Slamet Iman $7.00
by Prof. dr. Sarwono Waspadji, Prof. dr. Slamet Suyono $5.00
by Nursalam $13.00
by Budi Tri Akoso $0.00
by Poesponegoro, Marwati Djoened $7.00
by FMIPA Universitas Indonesia $6.00