by Mohammad Nurcholis dan Sri Sumarsih $7.00
by Syahrin Harahap $9.00
by Imam Syaukani & A. Ahsin Thohari $7.00
by Drs. D. Ketut Sukardi $11.00
by Nancy E. Lane, M. D $9.00
by H. Rahmat Rukmana $6.00