by Nursalam $12.00
by Akhmad Taufik, M.Pd., dkk $11.00
by Prof. dr. H. Sidarta Ilyas, SpM $7.00
by Grant Donovan, Jane $6.00
by $6.00
by Dr. Herman Cipto, SpKK, dr. Srie Prihianti Ismiarto $5.00