by S. Soegijanto $11.00
by Katzung $26.00
by O'Keefe, Susan Heyboer $6.00
by P. Efrem Zuba, CSsR $3.00
by Garry D. Freidnaan $7.00
by Dripa Sjabana $7.00
by P.K. Poerwantana $6.00
by Prof. Dr. Suharsimi Arikunto, dkk $7.00
by Dra. Rostamailis $9.00
by Thalib, Sajuti $6.00