by dr. Boyke Dian Nugraha $9.00
by Tarwoto $9.00
by Dra. M. Sri Sulastri Rifai, M.Pd $6.00
by Prof. dr. Peter Kabo Ph.D., dr. Sjukri Karim $7.00
by Nursalam $12.00
by Aziz Alimul $9.00